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[Announcement] “Sin of Lust” Update Season / Participating in the Autumn Sale

Thu, 01 Oct 2026 09:00:49 +0000

Hello, Plant Managers!

The season for Steam’s major sales is here.

Our game is also participating in this Autumn Sale, so you’ll be able to pick it up at a 10% discount.

For those of you viewing this from your Wishlist, please take this opportunity to give it a try.

Now, today’s announcement is a preview regarding the release of a new sponsor.

But first…
We’ve been publishing milestones since the start of Early Access on the game’s Steam store page, so we’d like to report on our progress toward those milestones as of today.

Results of the Player Feedback Focus Month

As part of our milestone, we designated the period through September as the “Player Feedback Focus Month” and worked to improve the game experience based on the feedback and gameplay data we collected.
From August 21, when Early Access began, through today, we have released a total of 9 patches over 41 days. This works out to a release pace of once every 4.5 days.
Please refer to our past event posts for detailed patch notes.

Through this initiative, the game’s median playtime reached 5 hours and 51 minutes. We are very pleased to hear that this is an exceptional figure for a game released on Steam.

While the Player Feedback Response Intensive Month has come to an end, we will, of course, continue to actively address your feedback moving forward.
We will continue to make improvements with the goal of creating a game that you can all enjoy for a long time to come. Thank you for your continued support.

“The Deadly Sin of Lust” Update Season

Starting today, we will begin work on the next item on our roadmap.
We’ve designated October through November as the “Sin of Lust” Update Season, during which we’ll implement and fine-tune our new sponsor, “Asmodeus.”

Today, we’d like to introduce the profile of “Asmodeus”, who will be the star of this season!

Keep an eye out for the new turmoil this demon—burdened with the sin of lust—will unleash in Hell.

During the “Sin of Lust” update season, we plan to gradually release the following content.

Sponsor Unit: Select Asmodeus during pre-game setup to play
- All contracts and corresponding familiars are available
- Corresponding familiars, relics, buffs, and more will appear in orders
- Some repayment rewards will be available
- Some Meeting Episodes will be viewable
Related Unlocks
- You can play special missions featuring Asmodeus
- Higher-tier repayment rewards, unlocked through special missions and other means, are available
- Even more meeting episodes are available for viewing
- Corresponding “Quest Boards” and “Portals” will appear
Adjustments and improvements to various elements based on play data

At the time of the “Sponsor Unit” release, it will be slightly weaker compared to other Sponsors that have all their features already unlocked. We hope you’ll enjoy this period as a chance to experience the basic strategy.

Implementation Progress

Graphic assets, such as character portraits and familiar animations: All complete
Meeting episodes to be released during the season : Writing for all 7 episodes is complete

We are currently conducting test plays in the development environment to determine familiar base stats and the contract pool.
We are currently checking through repeated playtests to ensure there are fun interactions with various existing sponsors and that we are providing fresh experiences befitting the new characters.

As soon as the familiar’s basic stats and contract pool are finalized, we will prepare the buff textures, decide on names and flavor text, translate them, and release the sponsors themselves.

A specific implementation date for both the Sponsors themselves and their related unlocks has not yet been determined.
We will release them as soon as we’ve fine-tuned them to everyone’s satisfaction, so please bear with us a little longer.

That’s all for now.

We plan to continue regularly sharing information related to Asmodeus throughout the “Sin of Lust” update season.

Stay tuned!

update ver0.29.0

Mon, 28 Sep 2026 14:21:35 +0000

Hello, Plant Managers!

In this patch, we focused primarily on fixing bugs and optimizing performance.

Familiar Animation Optimization

We’ve configured the system so that familiar animations are distributed across multiple CPUs.

As a result of this change, we observed a 250% increase in FPS during load testing in our development environment, which involved summoning 2,500 witches.

Addition of Sponsor Business Cards and Company Logos

Business cards and logos for “Satan” and “Belphegor” have been added.

With this update, official assets are now displayed for all companies that have been implemented.

A list of all business cards is provided below.
Be sure to check out the designs that reflect the unique personalities of each sponsoring company.

[carousel] [/carousel]

Tutorial Updates

Based on feedback and gameplay data collected at the recent Tokyo Game Show, we’ve made updates to make the tutorial easier to understand.

Crafting-related missions have been divided into three stages: “Distilled Slime,” “Copy/Paste,” and “Blacksmith Salamander.”
Missions that use Portals will now only take place in the “Training Grounds.”
The Transport Raven has been removed from the starting inventory and the in-game description.
Added full-screen tips regarding the order and land purchase functions
Reduced the number of contracts that appear to only a select few with clearly understandable effects

Changes to Starting Items

We made changes based on the removal of the “Transport Raven” from your inventory during the tutorial.

Starting Items: Transport Raven x1 → Water Conveyor x10 (total x40)

Feature Improvements

We have implemented fixes based on feedback.

Left, right, and middle mouse clicks, as well as up and down wheel operations, now display localized text
When switching crafting recipes, shared materials are now carried over whenever possible
Fixed so that you can connect to the last unloading destination even while paused (Pause will be canceled)
Repayment bonuses are now disabled during the tutorial
Input controls are now paused when moving to a separate window
Fixed so that control displays are immediately updated on the game screen after changing key bindings
Made the in-game UI list of mining points scrollable if it extends beyond the screen
Added the name and effect of the skill being loaded to the “Magic Wand” description when loading a staff skill
Unlocked sponsor information now displays on the “Prepare for Work” screen, just as it does on the Office homepage
After clearing Hell 3, display the unlock conditions for Inferno 1 when attempting to select the next difficulty on the difficulty selection screen
Make tutorial hints scrollable if they are too long to fit on the screen
Add a button to expand and collapse all mining point information, and make the entire list scrollable
- The F1 key is assigned by default.
- This is a preparatory update to allow players to review tutorial content during gameplay in the future.

Bug Fixes

Fixed a bug where opening the map at the exact moment a contract was signed in the Contract window could cause the game to become unplayable
Fixed a bug where performing an action the moment the Tax Window was closed caused display inconsistencies
Fixed a bug where Special Mission displays interfered with map navigation
Fixed a bug where resource balances before and after purchasing free land sometimes did not match
Fixed a bug where you could not zoom out again after checking the factory following a repayment
Fixed a bug where you could not immediately purchase the next plot of land after purchasing land while moving
Fixed an issue where an incorrect occupation warning appeared after successfully copying and pasting goblins
Fixed an issue where additional sales from “Control of Distribution” were disabled when the “Centralization” tax policy was activated
Fixed an issue where familiars consumed through donations or personnel deployment were not recorded in the consumption count in the results screen
Mitigation of a bug that prevented the game from launching due to save file inconsistencies
Fixed a bug where the preview for a conveyor belt would sometimes remain stuck at the starting point when placing it

Please continue to enjoy the Early Access version!

update ver0.28.0

Wed, 16 Sep 2026 13:10:04 +0000

Hello, Plant Managers!

In this patch, in addition to adding new Meeting Episodes, we’re implementing various feature updates and bug fixes in response to your feedback.

New Meeting Episodes Added

We’ve added the latest episodes for the four characters other than Belphegor, who was implemented earlier.

Lucifer: Mechanization
Leviathan: Business Partnership
Satan: Today’s Challenger 2
Mammon: Hiding Place

Feature Improvements

Encyclopedia Feature

We’ve created an encyclopedia feature that lets you view a list of in-game elements.

By default, you can open it by pressing the B button or by clicking the button in the common UI displayed in the upper-right corner.

Implemented Encyclopedias

Item Encyclopedia (List of item prices)
Contract Encyclopedia (List of contract effects)
Familiar Encyclopedia (List of familiars and crafting recipes)
Tax Encyclopedia (List of tax effects)

Each encyclopedia is designed to automatically record elements you encounter in the game as you play.

For items whose values change during gameplay—such as crafting recipes and item prices—there is also a feature that allows you to toggle between the initial values and the current values. Please feel free to make use of it.

We will continue to expand the types of encyclopedias in the future.

Other Feature Updates

Information is now displayed when you hover the cursor over icons in the resource inventory.
You can now always return to the previous screen from the Office screen by pressing Esc.
Added “Encyclopedia” and ‘Statistics’ buttons to the Contract screen
Fixed the display of costs reduced to zero by owning “Free Land Tickets” or “Spell Casting Service”: \[Original Cost] 0
Some tips now appear when the game is paused in full-screen mode
Corrected some text in the tutorial

Bug Fixes

Fixed a bug where, if items placed into a portal had a resource value more than twice the required amount, the game might award rewards exceeding the specified limit or crash
A bug where the effects of “Engraved Cobalt” and “Tariff: Chemical Industry” would also trigger when crafting items that use buffs as ingredients
A bug where system load would increase when consuming large quantities of “Engraved Amethyst” at once
A bug where the tooltip for “Counterfeit Seal” did not function when hovering over it
A bug where clicking the ground immediately after the game loads may result in the area being treated as unowned land
A bug where, when assigning a key in the Key Configuration menu, the key is simultaneously treated as if it had been pressed in-game
A bug where an order can be completed when executing “View Factory Status” from the Results screen
A bug where contracts that do not appear in contract offers in “Special Missions” may sometimes be available on the “Request Board”
A bug where the game mode requirements for repayment bonuses—which are unlocked only by clearing “Factory Development”—are not clearly specified
A bug where the conveyor speed reduction from the “Water Conservation Order” tax is negated by the “Dredging” and “Infrastructure Investment” contracts
- The notation has been changed from addition to multiplication.
Fixed localization errors related to the meeting UI

Improvements to error log collection

Added PC specifications (such as GPU model number) and driver information to error logs
- These improvements are intended to facilitate investigations into device-specific issues.

Please continue to enjoy the Early Access version!

We'll be exhibiting at the Tokyo Game Show 2026!

Fri, 11 Sep 2026 09:53:54 +0000

Hello, Factory Managers!

From September 17 to September 21, Japan’s largest game exhibition, the “Tokyo Game Show 2026,” will be held in Makuhari, Japan.

Lazy Witch’s Factory will be exhibiting at this year’s TGS!

Exhibition Booth: [09-C64 Phoenixx]
Visitors can play a version of the tutorial stage identical to the one in the full game.
We also plan to run a campaign exclusively for attendees.

Information regarding our TGS appearance will be posted on the publisher Phoenixx’s official X account.

http://“https://x.com/Phoenixx_Inc”

Be sure to follow us and stay tuned for updates!

update v0.27.0

Fri, 04 Sep 2026 15:42:42 +0000

Hello, Factory Managers!

This is the second balance adjustment patch for the Early Access version.

In addition to fixes designed to reduce reliance on randomness and make it easier to develop repeatable strategies, this update includes new portals and power balance adjustments to existing contracts.

We’ve also heard concerns about not wanting to implement nerfs that might detract from the fun of the game. We’re paying close attention to this issue and will continue to ensure

“the exhilaration of seeing various elements, such as contracts, dynamically change gameplay”

“the strategic diversity that allows players to inflate production capacity in various ways”

“a challenging difficulty level that encourages player growth”

We will continue to strive to ensure that all of these elements are achieved in a well-balanced manner.

Please note that the current environment is, strictly speaking, a temporary one limited to Early Access.

We plan to add two more sponsors in the future, so the game environment should become even more dynamic in upcoming patches.

Specifically, the number of possible sponsor combinations will double with the next addition, and then increase to 3.5 times the current number with the addition of the following sponsor. This will further expand the range of playstyles based on these combinations, allowing us to offer an even fresher and more engaging experience.

However, balancing the game will simultaneously become increasingly difficult. Until we achieve our ideal gaming experience, your accumulated play data and feedback will be indispensable.

We sincerely appreciate your continued support for the time being.

Land Generation Logic Fix

This game is designed as a title where “you use knowledge to overcome luck and improve your win rate by skillfully designing your track layout to shave off time.” However, regarding the generation of biomes around the initial starting location, there is little room for player decision-making, and some generation patterns create a sense of unfairness.

As a countermeasure, we’re updating “Factory Development” mode to generate the following land types fixedly. Choosing which land to start the game on will now be a more critical decision than ever.

Fixed Selection of 4 Adjacent Biomes for the Starting Location

1 biome identical to the starting location
Two distinct biomes different from the starting location x 2
One random biome x 1 (Selection probability: 50% chance of being the same as the starting location / 50% chance of being a different one)

In some “Special Missions,” the settings may be configured so that specific biomes are generated adjacent to each other, so not all of the above settings may apply. In all other cases, the settings described above will apply.

Portal-Related Changes

Changes to Spawn Probability

Since the mere presence or absence of a “Portal”—regardless of its contents—significantly affects game progression, we are reducing the degree to which progression depends on probability.

Fixed Portal Spawns

Two portals will always spawn adjacent to the starting location
After that, they may spawn randomly on new land

Addition of New Portals

We are adding various portals to expand strategic diversity.

All requirements listed are initial values; as you meet them, higher goals will be reset.
Higher-rarity portals are more likely to appear the farther they are from the starting point.

Common Portals

Lucifer “Sawmill”

Requirement: “Wood x 500”
Effect: “Item Price Change: +1 to each resource corresponding to the current sponsor (excluding cash)”

Leviathan “Bio Plant”

Requirement: “Compost x 20”
Effect: “Item Price Change: Prices of lemons, mushrooms, and beeswax +1 (chemicals)”

Leviathan “Pigment Workshop”

Requirement: “Gem Powder x 20”
Effect: “Item Price Change: Prices of Salt, Sulfur, and Cinnabar +1 in the Pharmacy”

Satan “Fighting Supplies Store”

Requirement: “Iron Ingots x 20”
Effect: “Obtain: Blacksmith Salamander x2”

Mammon “Security Checkpoint”

Requirement “Cash x10”
Effect: “Obtain: Transport Raven x5”

Belphegor “Gambling Stone Shop”

Requirement: “Magic Power x500”
Effect: “Item Price Change: Magic Power of 1 random gem type +3”

Note: Each time you meet a delivery target, one gem is randomly selected from “Jade, Amethyst, Cobalt, or Ruby.”

Uncommon Portal

Lucifer’s “Mining Site”

Requirement: “Iron Ingots x 20”
Effect: “Pickaxe Price: Cash + 5”

Satan “Amalgam Smelter”

Requirement: “Mercury x 20”
Effect: “Gold Ingot Price: Cash +5”

Rare Portal

Mammon: “Stock Exchange”

Requirement: “Gold Ingots x 20”
Effect: “Gain: Sub-lending x 60”

Belphegor: “Former Factory Manager’s Buff Panel”

Requirement: “Random Gems x 500”
Effect: “Random Engraved Gems x 2,000”

Note: The types of gems required are determined at the start of the game, and the engraved gems you can obtain are randomly selected each time you meet a delivery target.

Satan

Heaviest Metal / Heaviest and Lightest Metals

The “Heaviest Metal” contract has an extremely low pick rate because it scales poorly with line construction and transport load. We will re-adjust its stats so that it can still play a role in the late game, even when other options have scaled further.

“The Heaviest and Lightest Metal” will be adjusted to make it easier to pull off a last-second comeback victory.

Adamantite

Price:

Fuel 1000 -> 2000
Cash 100 -> 500

Adamantite

Crafting Recipe:

Quantity x 1,000 -> x1

Price:

All resources, Fuel, Cash: x3 each -> x10,000 each

Leviathan

In the previous balance update, we were able to rework it into a sponsor that is easier to handle and more fun to use.

We will implement adjustments based on usage data regarding the elements added in the patch.

Rarity Reassignment

We are swapping the rarities of “Aqua Regia Test,” “Acid Catalyst,” and “Tear.”

“Aqua Regia Test”: While we’ve made this a satisfying and powerful contract, it has begun to exceed the standards expected of an Uncommon, becoming a “must-pick” option.

“Acid Catalyst”: This is an extremely powerful contract once you understand how to use it, and its power surpasses that of a Common.

“Tear”: Since it appears late in the game, it has become a contract that players only pick if they happen to find a way to use it after their build is already set. Like Satan’s contract “Water-Cooled Craft,” we’re assigning it the role of supporting subsequent picks.

Contract “Acid Catalyst” Rarity: Common -> Uncommon
Contract “Tear” Rarity: Rare -> Common
Contract “Aqua Regia Test” Rarity: Uncommon -> Rare

Relic “Acid Catalyst”

Adjustments will be made in accordance with the rarity reclassification.

Drop Table:

Common-equivalent -> Uncommon-equivalent (Drop rates in Orders and Trades will decrease, and prices will increase)

Special Mission: “Culture Plant”

Compensation will be provided to offset the increased difficulty in obtaining this item through Orders.

New Initial Contract: “Acidic Catalyst”

Adjustments to Contracts Added in 0.24.0

Buff “Foreign Matter Contamination”

The pick rate has been excellent, and it appears the changes in 0.24.0 greatly contributed to improving Leviathan’s gameplay experience.

With this adjustment, it will be harder to use this contract alongside the “Aqua Regia Test” in the early game, and the amount of chemicals obtained via the “Acidic Catalyst” will also decrease. Therefore, we are restoring some of the power Leviathan lost from this contract to emphasize its role as a supporter.

“Foreign Object Contamination” Resource Gain: 20 -> 30

Buff: “Buried Promissory Note”

This does not seem to be a very attractive option for players.

We’re strengthening this option to align it with “Foreign Contamination,” which has become a popular choice. We’re adding interactions with other sponsors to increase the number of situations where it can be utilized, and we’re compensating for the reduced interaction with Mammon—which occurred because “Acidic Catalyst” has become less likely to appear in orders.

“Buried Bill of Exchange” Resource Yield:

50% of the resources paid in chemicals -> 50% of the resources paid in the respective resources corresponding to the current development sponsor

Example: When using Lucifer, Satan, or Leviathan, you can obtain “Building Materials / Fuel / Chemicals.”

Contract: “Aqua Regia Administration Test”

While the improvements to usability appear to have been successful, this contract has become significantly more powerful than originally anticipated—even accounting for its reassignment to the “Rare” tier—so we will be adjusting the risk factors accordingly.

Chemical Consumption: 300 -> 500

Belphegor

Thanks to the “Engraved Gem” contracts newly added in the Early Access version, Belphegor has successfully settled into the role of a “fun sponsor that matches the player’s skill level.”

In this update, we’re addressing both options that are currently too powerful due to insufficient balancing and those with low win rates.

Relic “Magic Drain”

This option is intended to address mana depletion—a major bottleneck when using Belphegor—but it does not seem very appealing to players.

We’ll make the reward more straightforward by adjusting the system so that consuming Engraved Gems yields more mana than simply delivering regular Gems.

Magic Gained: 1 → 2 per Engraved Gem consumed

Contract: “Spin-off”

The drawback of losing “Contract Skip” is significant, and even in “Staffing” builds, the expected win rate has not been achieved.

We will implement a fix to emphasize its role as a key component in the “Staffing Agency” build.

Added Effect:

Gain: Summoner Witch x 10

Contract “Theft”

This card possesses powerful interactions and has become an option that can end the game without players even having to think much about synergy.

While preserving the enjoyment of a massive influx of coins and the simplicity of lane design, we’re applying a change that increases only the risk of running out of resources, thereby emphasizing the need for resource management.

Additional Required Resources:

Mana x 5

Rarity Reassignment

We are swapping the rarities of “Time Walk” and “Waste Embezzlement.”

“Time Walk”: Due to its high rarity, there were many instances where the game ended before players could activate it, even when it did appear. To ensure players have enough time, we’re moving its appearance to the early game.

“Waste Embezzlement”: Because it has no risk and produces an immediate effect, it exerts a stronger influence than intended when presented early in the game. We are emphasizing its nature as a finisher.

Contract “Time Walk” Rarity: Epic -> Rare
Contract “Waste Embezzlement” Rarity: Rare -> Epic

Bug Fixes

A bug where the tax effect applied in-game sometimes differed from the value displayed after the game ended
- This occurred with “Fixed Costs” imposed by “Head Tax,” among other instances.
A bug where the specific resource name was not displayed for the “Damages” tax.
A bug where items may move at double speed when a loop is created using a Water Flow Splitter and a Water Flow Conveyor
A bug where canceling a crafting recipe that consumes “Engraved Gems” after it has started allows you to receive the mana gain effect from “Magic Drain” without consuming the “Engraved Gems”
- This applies to the additional recipes in “Royal Straight Flush” and “Quest Board.”

Other Fixes

Water Flow Splitters now transport items at the same speed as regular conveyors when item distribution is not required (e.g., when the destination is full or there is no connection).
Summoner Witch - Added auto-snap for Mining Goblins.
Implemented the Ophiidia Science Institute emblem and official Leviathan business card assets
Fixed localization errors and made display adjustments

Please continue to enjoy the Early Access version!

update ver0.26.0

Tue, 01 Sep 2026 11:04:33 +0000

Hello, Plant Managers!

This patch includes numerous enhancements to the beginner’s guide and addresses many of the issues raised in your feedback.

Thank you for your feedback on Steam reviews and in the community!

Please note that this patch includes all content from Ver 0.25.0, which was rolled back.
(The issue causing the application to crash on certain devices prior to the rollback has been fixed.)

Please refer to this as well.

Update Ver. 0.25.0

This update includes various bug fixes and performance optimizations.

https://steamcommunity.com/games/3971650/announcements/detail/698774255287927005

Enhanced Feature Guide

When hovering over the selection button for unlocked sponsors or the special mission button, display the unlock conditions
Display icons for both unlocked and implemented sponsors as silhouettes

The following guidance is displayed once per save file.
We kindly ask for your understanding if you are already familiar with how to play this game.

When you sleep for the first time, display instructions regarding fast travel
When you make your first loan repayment, display instructions regarding the reroll feature, the supply conveyor, and supply plots
Immediately after you use up the conveyor belt for the first time following the unlocking of additional loans, Gehenna will remind you to repay the loan
When Special Mission: Inferno is unlocked, display a pop-up with navigation buttons to each feature

Tutorial Updates

While progressing through the “Using Portals” chapter, the order list will now always display exactly one instance each of “Mining Goblin” “Form Training,” and “Cleaned” will always appear in the order listed.
- Using these features appropriately can speed up mission progress.
The ‘Crafting’ section has been split into two chapters: “Resources & Items” and “Crafting”.

Enhancements to the Results Screen

Please use this to review your gameplay.

Added a display mode to “Contract History” that fits all contracts on a single screen
Made the “View Factory Status” command available
When challenging Hell or Inferno difficulty levels, the respective theme colors are applied

Quality-of-Life Improvements

Added high-priority targets to object snapping

We’ve added a process that snaps to a connectable orientation when priority targets are adjacent but a connection cannot be established.

This should reduce incidents where work stops due to incorrect orientation.

Summoned Object

Adjacent Object
(Snap Target)

Connection point on the adjacent object facing this entity

Connection point on this entity facing the adjacent object

Connection point facing the adjacent object (Snap Direction)

Blacksmith Salamander

Summoner Witch

Conveyor

Splitter

Unloading Area

Outlet

Inlet (opposite side of the outlet)

Distilled Slime

Blacksmith Salamander

Summoner Witch

Conveyor

Splitter

Raven Entrance

Input Port

Optional

Output Port

Salamander Blacksmith

Mining Goblin

Exit

Entrance (Opposite side of the Exit)

(Existing Processing)

Non-same-type familiars

Optional

Connection points where a connection can be established (if any)

If there are multiple items with the same priority, the mouse cursor will snap to the closest one. (Existing behavior)

You can also disable snapping using a shortcut key and place the item exactly as it is oriented (\[Alt] key by default). Please make use of this feature as well.

Other Feature Fixes

The land-locking effect of development orders has been moved to the pre-unlock effect of sponsor-unlock-type repayment bonuses
- The lock is lifted upon completing factory development on the relevant land.
  - Example: If Mammon is not unlocked, cliff terrain will always appear
Changed the display format for crafting recipes in contracts that unlock new recipes to a format consistent with the crafting window
Revision of mining point spawn logic
- Minimum distance between the center map tile and mining points: 3 tiles -> 4 tiles
- Minimum spacing between mining points: 3 squares → 4 squares
  - When mining points spawned at the minimum spacing mentioned above, there were instances where there wasn’t enough space to mine, process, or transport resources; this issue has been resolved.

Bug Fixes

Mitigation of an issue where pasting became impossible under specific conditions
Fixes for some localization errors

Please continue to enjoy the Early Access version!

Rollback to ver0.24.1

Sat, 29 Aug 2026 01:24:30 +0000

We have confirmed that, in the Update 0.25.0 environment released today, the game suddenly becomes unplayable on some devices, regardless of the game mode.

As an emergency measure, we have rolled back to the previous version, Update 0.24.1.

We sincerely apologize for the inconvenience caused to everyone affected by this issue. Please restart the Steam client and the game to apply the patch.

Update ver. 0.25.0 / Running Statistics News

Fri, 28 Aug 2026 12:38:10 +0000

Hello, Plant Managers!

In this update, we’ve applied a patch that primarily addresses bugs occurring under specific conditions.

We’ve also implemented fixes to improve performance when displaying large numbers of familiars.

Information regarding run statistics is included at the end of this post. Be sure to check it out!

Bug Fixes

A bug where sorting tax details after starting a game did not reflect the order change on the tax notice in the results screen
A bug where the “Specialty Product Tax” preview in the Office referenced the details from the most recently played game mode
A bug causing errors with certain crafting recipes obtained from trade signs in the special mission “Line Master.”
- An error occurred with recipes that included both “Wood” and “Fuel” before conversion under special rules. We’ve fixed this so that the same recipe is combined after the materials are converted.
A bug where decimal points in resource balances were rounded up, sometimes making it appear as though achievement conditions were met even when they were not
- Affected: Meeting unlock conditions / Orders / Request Boards / Crafting / Land Purchases
- We have fixed this so that only the balance display is now rounded down.
Fixed a bug where the Momoko re-deployment UI would not appear until the cursor moved when opening the map immediately after re-deploying Momoko
Mitigated an issue where, under specific conditions, Momoko could not be re-deployed until the application was restarted
Fixes for other minor display issues

Other Fixes

Implemented a fix to distribute the CPU load of familiar animations across multiple threads
Fixed so that contract names in the group of contracts that replace “Skip Contract” are now displayed as link text, allowing players to view the replacement contract information by hovering the cursor over them
- The feature to hover over the link text within the contract information displayed on hover has not yet been implemented.
  (The same applies to contract information displayed on hover in Special Missions, etc.)

Run Statistics News

We collected run statistics for the standard factory development mode in Hell 1 through Inferno 1 starting from Patch 0.24.0, which introduced major balance adjustments, and analyzed the win rates. Here, we present some of the data from these statistics.

Debt Repayment Rates by Sponsor

Sponsor

All Difficulties

Hell1

Hell2

Hell3

Inferno1

Average

28.8%

50.4%

25.7%

19.1%

20.1%

Lucifer

27.6%

48.2%

24.7%

18.4%

19.4%

Satan

28.2%

48.4%

24.4%

19.8%

Leviathan

29.0%

48.8%

26.2%

19.8%

23.0%

Mammon

30.5%

55.7%

27.8%

18.6%

20.2%

Belphegor

33.5%

63.2%

29.5%

19.8%

23.0%

Number of Runs

8,961

2,273

2,246

3,724

718

Lucifer, Satan, and Leviathan are the three sponsors available for initial unlock. Particularly in the Hell 1–2 difficulty range, their win rates are lower than one would expect given their sponsor status; this is likely due to the inclusion of runs by players still developing their understanding of the game, as well as runs where repayment bonuses have not yet been unlocked.
Conversely, since Belphegor and Mammon are unlocked later, players tend to be more skilled with them, and their win rates appear to remain relatively high even when accounting for repayment bonuses.

update ver0.24.1

Wed, 26 Aug 2026 05:07:10 +0000

Hello, Plant Managers!
We’ve released a patch to fix some bugs.

Bug Fixes

A bug where the “Re-drop” UI interfered with click detection
A bug where the effect value of the “Waste Embezzlement” contract was fixed at the time of the random draw
Bug where mining point conversions from staff skills were not immediately reflected in the mining summary in the top-left corner
Bug where the “Torrent Splitter” recipe obtained from the trading board could not be crafted because it could not reference the “Water Flow Conveyor” in the inventory
A bug where the required trade for the Blacksmith Salamander recipe in the special mission “Line Master” cannot be executed

Please continue to enjoy the Early Access version!

Translated with DeepL.com (free version)

update ver0.24.0

Tue, 25 Aug 2026 10:10:33 +0000

Hello, Plant Managers!

Now that we’ve finished fixing the major bugs, we’ll be moving on to feature development and balance adjustments as we go.

Today, we’re unveiling the first patch in this series.

New Feature: “Momoko Re-deployment”

This feature allows you to warp to a specified plot of land from the map screen.

It is assigned to the F key by default.

You can open the map screen using the M key (default) or the corresponding button, and activate the feature by hovering the cursor over a plot of land you own.

Company Emblems and Business Cards Implemented

The official assets for the “Lucifer” and “Mammon” company emblems, as well as business cards for all three characters—including “Gehenna”—have been completed.

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These luxurious business cards will be displayed on the Connections screen in your office.
(*They will be displayed in English regardless of the selected language.)

Your company emblem will gradually begin appearing in various locations throughout the game. Be sure to look for them!

Contract & Buff Adjustments

Although it’s only been a few days since launch, thanks to the cooperation of many players, we’ve been able to collect a sufficient amount of data from Special Mission Hell 1 and Factory Development Hell 3. Thank you!

Using this statistical data, we have made adjustments to several options where issues had already been identified.

By adding risk to Contracts that are overwhelmingly powerful and adding rewards to Contracts that lack power, we aim to balance risk and reward, creating room for players to weigh their options and decide whether to use a Contract on each run.

Gehenna

Contract: “Dredging”

This contract currently provides sufficient benefits with lower risk than the rare contract “Infrastructure Investment.”
We will address this by increasing the unique risk associated with this contract.

Number of “fixed costs” applied per negative resource: x100 -> x200

Satan

Contract: “Craft with Care”

Currently, this is the contract with the highest win rate among all Uncommon Contracts; it is an overwhelmingly powerful option where the number of times it is obtained directly correlates with the win rate, regardless of the sponsor combination.
It increases the risk while maintaining its core identity of “raw material conservation” and “synergy with all crafting-type familiars.”

Number of “Environmental Pollution” applied: 10 → 15

Leviathan

In the 0.23.0 meta, two-thirds of Leviathan’s Uncommon Contracts are assigned the effect “Increased production output through massive resource consumption.”

However, since these contracts significantly increase the difficulty of resource management, they undermine Leviathan’s identity as a character that is beginner-friendly due to its low line-building burden.

We will make adjustments to alleviate this situation and ensure the character is appropriate for the “Difficulty: Low” rating.

Contract “Aqua Regia Administration Test”

We will adjust the settings to allow players to control the input cost while maintaining the contract’s core identity of “accelerating production speed by investing additional resources.”

New Effect

Added recipe for Distilled Slime: 300 Chemicals -> Venom 5 (60 seconds)
Obtained: Distilled Slime x1

Contract: “Tear”

The “Aqua Regia Administration Test” will no longer stack, leaving “Multi-Brain Test” as the sole factor contributing to infinite scaling.

As a result, there is now room to increase the power of “Tear” itself, so we are strengthening it.

“Chemical Reaction” Production Count x2 -> x5

Contract “Venom Injection” Removed

We have removed this contract since its effects no longer overlap with those of the “Aqua Regia Administration Test.”

Note that the “Deadly Toxin” buff may still appear in orders.

New Common Contract: “Buried Promissory Note” (Reusable)

This provides a new method for converting resources other than chemicals into chemicals.

Effect: Obtain 3 “Buried Promissory Note” buffs.
- When you purchase a “Buried Bill” land, consume one count of this buff to obtain 50% of the resources you paid in the form of chemicals.
  - The mechanics follow those of the “Short Sale Bill” buff and do not apply to purchases made with free land vouchers.

New Uncommon Contract: “Foreign Matter Contamination” (Reusable)

We are adding a contract that synergizes with Leviathan’s core strategy of “high volume, low margin” and supports the strategies of all sponsors.

Effect: For 90 seconds, each time you sell an item priced at 1 cash or more, you gain 20 units of each resource corresponding to the current development sponsor.
- Example: When using Lucifer, Satan, and Leviathan, you will gain “Building Materials / Fuel / Chemicals.”
- The effect is applied in the form of the “Foreign Matter Contamination” buff.
- The “Foreign Matter Contamination” buff will also appear in orders.

Mammon

Since the benefits of “Indulgence” are difficult to appreciate except in the very early stages of the game, we will adjust it to ensure it remains an enjoyable effect throughout the game by improving its feedback.

Relic “Indulgence”

New Effect: Each time you repay a debt, increase the number of this relic you possess by 10% and receive one luxury item equal to your total number of relics.

Belphegor

The “Labor Dispatch” build has become relatively less viable because the transportation bottleneck that occurred when deploying large numbers of familiars onto the map has been resolved more easily.

We will enhance the rewards so that players can aim for victory in various ways depending on the situation.

Buff “Dispatch Performance”

Cash reward trigger interval: Once every 5 seconds → Once every 4 seconds

Special Mission Adjustments

While these missions offer fresh gameplay in unique situations, many also serve as “training grounds for sponsor-specific playstyles”.

We will be adjusting the roles to ensure each mission offers a moderately challenging difficulty level, while also allowing players to naturally improve their gameplay skills as they complete them.

Mission: “Criminal Syndicate”

When using the “Customer Support Center” strategy, the clear time is 5–6 minutes faster than the average for all missions, making it an exceptionally easy mission. On the other hand, clearing the mission using the “Hell Remodeling Theory” appears to be more difficult than anticipated.

Our goal is to keep the exhilarating gameplay experience—which comes after understanding Mammon’s playstyle—while bringing the completion time within a more reasonable range.

Initial Contract

Abolish “Hell Remodeling Theory” and use only “Customer Support Center”

Initial Resources

“Indulgences” x500 -> Removed
“Subleasing” x300 -> x240

Mission: “Environmental Pollution”

This mission requires players to skillfully utilize various systems and is currently the most difficult of the missions unlocked at the start of the game.

We will slightly ease the difficulty while also implementing adjustments to help players better understand “Chemical Reactions.”

Initial Contracts Added

“Aqua Regia Administration Test”

Initial Resources Added

Chemical Reactions x 100

Mission: “Culture Plant”

This is the most challenging mission of all, as it requires flexible decision-making based on orders and contracts. However, it has also been found that once you get the hang of it, this mission is relatively easy to complete.

In this adjustment, we’re easing the difficulty to emphasize that this mission is a test of your ability to adapt on the fly.

Initial Resource Changes

Added -> Re-Roll Rights x 3

Other Updates

Added an “Encyclopedia” button to the Key Configuration (in preparation for future updates)

Bug Fixes

Fixed a bug where the familiar obtained from the “Witch's Hat” relic was displayed as a Distilled Slime (Summoner Witch is correct)
A bug where the transport speed bonus from the relic “President’s Surveillance” was applied after the speed reduction from “Environmental Pollution”
- Items would still move even when Environmental Pollution was at 100 or higher if “President’s Surveillance” was active.
A bug where the message “You do not own this land” would appear when a click bypassed the land ownership check under specific conditions
A bug where an error might occur if a staff skill cast was canceled by a screen transition
Fixes for minor inconsistencies in text, etc.

Please continue to enjoy the Early Access version!