Explore the vast terrains of Mars, generated from real NASA satellite data, and survive threats like dust storms by discovering randomized supply caches and habitats. Adventure in an otherworldly first-person sandbox.
All Reviews:
Mostly Positive (22) - 77% of the 22 user reviews for this game are positive.
Release Date:
May 17, 2017
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Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Random Seed Games is currently only one full-time developer and a few part-time contributors. I want to get as much feedback as possible on the Survival Sandbox gameplay systems while I continue to expand the game and add features in preparation for a Story Mode.”

Approximately how long will this game be in Early Access?

“It is likely that Lacuna Passage will be in Early Access for at least a year before Story Mode is available.”

How is the full version planned to differ from the Early Access version?

“Story Mode is my long term goal, but I will respond to player's interests with the Survival Sandbox. I will be targeting monthly updates that will address bugs and add new features.”

What is the current state of the Early Access version?

“Lacuna Passage currently exists only as a Survival Sandbox, with an emphasis on the "Sandbox". There is no narrative. There is no combat. This is a very small game with light survival mechanics. The primary activity is exploration. If you are satisfied by "walking simulators" or have an interest in space photography you might find the Early Access version compelling. If you want a more structured and goal-oriented experience you might want to wait until the Story Mode is finished.”

Will the game be priced differently during and after Early Access?

“I may gradually raise the price as I ship new content and features.”

How are you planning on involving the Community in your development process?

“The main reason I am releasing on Steam Early Access is so that I can get feedback from players. I plan to engage with the community on the Steam discussion forums and the official feedback forum that is accessible through the game's main menu.”
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Recent updates View all (6)

November 3

Power System Rework Update - v0.61



v0.61 focuses on a complete update of the power management system for exterior habitat modules, but a bunch of bug fixes are included as well. Check the change log below.

Change Log
  • Fixed incorrect east hab map marker location.
  • Fixed datapad UI navigation issue that would discard inputs that were entered too quickly.
  • Fixed bug that prevented you from strafing while auto-walking.
  • Fixed bug that caused dust storm effects to be visible and charging with portable solar panel to be possible while inside east hab airlock.
  • Made change to WayStat discovery view colliders so that they hopefully trigger more reliably.
  • Made change to mouse sensitivity range (this may require you to adjust your sensitivity in the control options menu).
  • Fixed bug causing the minimum solar charge during a dust storm to go lower than intended.
  • Game performance should be slightly improved after doing a recent optimization pass of several game systems.
  • Reworked the entire power supply system for the habitat exterior modules. Read below for details.

Additional Changes in v0.61.1
  • Added a delay before UI inputs are repeated when holding down an input button or key.
  • Made changes to Datapad interactions to reduce instances of controls becoming disabled.
  • Added back Remote Outpost scanner markers that had been accidentally deleted in a previous update.
  • Fixed issue causing Datapad to be positioned incorrectly in some cases after loading a save game.
  • Fixed issue causing breathing and life support EVA suit sound effects to not play correctly in some cases after loading a save.
  • Fixed issue causing walk speed to be incorrect in some cases​ after transitioning between habitat interior and exterior.
  • Photos taken before quitting or dying without saving will no longer be viewable via the Datapad when loading a previous save. They will still be available in the photo save folder on your machine with the location data removed.

Additional Changes in v0.61.2
  • Fixed an issue with landing pods only being discoverable from certain viewing angles.
  • Fixed an issue that was allowing player movement when it should be locked after interacting with certain components or consoles.
  • Fixed an issue with the button selection highlight disappearing from the datapad UI when submitting the selection via the left mouse button.
  • The electrical module no longer requires a reserve battery charge in order to charge the reserve battery via the connected solar panels.
  • Fixed interaction issues caused by double clicking the mouse button quickly with certain triggers.
  • Disabled the ability to click with the left mouse button during repair transitions to prevent control lockouts.
  • Added a slight bounce to the helmet visual HUD.

If you want a TL;DR of the new power system: We have moved from power percentages to power units. As long as you maintain 100 power units worth of solar panels/RTGs connected to each exterior module you should see very little difference to how the system worked previously. If you want a more in-depth rundown of the new system then keep reading.

Here’s how the new power units are generated with RTGs and solar panels:

RTGs generate 50 units, day and night (used to be 100% power).
Large Solar Panels generate 50 units during the day (used to be 50% power).
Small Solar Panels generate 30 units during the day.
Portable Solar Panels generate 20 units during the day.

There are still only the 5 solar panel slots and one RTG slot for each module, but now they all contribute directly to the reserve battery so long as the electrical module is operational. However, now there is a maximum of 100 charge units from any set of module slots. That means the most you can generate during the day would be 400 units from all four modules.

Then, all the modules also incur a general cost that pulls from the reserve battery in order to operate.

Water Reclaimer
  • 50 unit cost to produce water.
  • 40 unit cost to keep water running if tanks are full.
  • If at least 50 units are being supplied by solar panels/RTG directly connected to this module then water production is more efficient.
Reoxygenator
  • 50 unit cost to produce oxygen.
  • 40 unit cost to keep running if tanks are full.
  • If at least 50 units are being supplied by solar panels/RTG directly connected to this module then oxygen production is more efficient.
Heater
  • 50 unit cost to heat up interior to normal temp.
  • 40 unit cost to keep running if at stable temp.
  • If at least 50 units are being supplied by solar panels/RTG directly connected to this module then temp will increase faster if below normal temp.
Electrical
    25 unit cost to keep all electrical systems running (lights, crafting, etc).

From the above requirements, the highest possible unit cost to keep all systems running would be 175 units, but if all oxygen and water tanks are full and the interior temp is stable then the cost would only be 145 units. This means that you should be banking between 225 and 255 units if you have the full 400 units of solar panels connected to your modules during the day. That banked amount should then be more than enough to cover the cost of all modules over the night and leave you with extra to transfer to your EVA suit when you go out to explore.

Because of this new system, all modules now produce at the same rate during the night as they do during the day. This is a change from before when the Reoxygenator and Water Reclaimer would produce at a drastically reduced rate at night. To balance for the increased amount being produced around the clock, both of these modules now produce at about 60% of their previous maximum production rate.

Many of these changes were prioritized based on feedback provided by players on our Feedback Forum. Help me determine future development priorities by posting your ideas, suggestions, and bug reports there. A special thanks to Mr. Fusion on the feedback forum for all his help and suggestions related to the power system rework.
1 comments Read more

October 6

Controller Support Update - v0.6



v0.6 focuses on making the control options much more flexible. This required a complete rework of the input system in the game to support most PC-compatible controllers and full key remapping options. This continues my current pattern of alternating major updates between gameplay system additions (like the previous pop tent and dust storm updates) and quality-of-life additions (like this one). Check out the full change log below.

Change Log
  • Controller support has been added for most dual joystick controller types.
  • Keyboard and controller button remapping is now available via the Controls option menu.
  • Increased frequency of dust devils.
  • Fixed bug that caused hab status panel to display information from a different hab.
  • Fixed production levels of oxygen and water modules relative to the impact that broken components should have.
  • Changed locomotion settings for moving up and down slopes and while jumping.
  • Fixed issue where reserve battery could be charged slightly over 100%.

Many of these changes were prioritized based on feedback provided by players on our Feedback Forum. Help me determine future development priorities by posting your ideas, suggestions, and bug reports there.
2 comments Read more
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AWARDS AND ACCOLADES

“A gorgeous game of mystery and survival” - Kotaku

"I’ll happily play" - Rock Paper Shotgun

"Lacuna Passage stands out from the competition with gameplay and "realistic" environments" - Jeuxvideo.com

"A massive, convincing game world" - Red Bull

"A very realistic portrayal of what life is like on the Red Planet" - GameSkinny

"The game has captured the imagination of many space and science fiction fans" - Mashable

"There is plenty to enjoy about Lacuna Passage" - GAMR

"Pretty damn neat" - Select Button

"The landscapes are magnificent" - Game-Guide

"The game's music is completely off the hook" - Cinema Blend

"They’ve captured the vibe of Mars very well" - Tech Raptor

About This Game

You wake in an landing pod, check your equipment, and venture out onto the red Martian soil in search of a nearby habitat. With 25 square miles of the Red Planet to explore and survive, you must gather resources from randomized points-of-interest, supply caches, and other habitats in order to continue your mission. But survival is more than just tracking status bars. Maintaining your life-support equipment is just as important as maintaining your health. Lacuna Passage’s Survival Sandbox will allow you to test drive the core game mechanics in Steam Early Access ahead of the upcoming Story Mode.



Explore a massive terrain generated from actual Mars satellite imagery. With features generated from scans collected by the HiRISE project and details painstakingly designed to reflect the photography captured by planetary rovers, this is as close as you can get to visiting the true Red Planet.



Survive the harsh Martian environment with mechanics based on real health metrics like blood glucose levels, heart rate, caloric intake, and more. You will feel like a true interplanetary pioneer as you conquer the elements and survive randomized threats like dust storms.



Capture the beauty of Mars with an in-game photography mechanic that allows you to document your discoveries. Photos are saved to your computer at full 1920x1080 resolution and can be referenced in-game where you can set objective points to navigate back to where the photos were taken.



Interact with the various astronaut technologies through your dependable datapad. You will need to manage inventories, salvage and craft supplies, and repair vital life support systems in order to survive the desolate landscapes of Mars.

System Requirements

Windows
Mac OS X
    Minimum:
    • OS: Windows 7/8.1/10
    • Processor: Intel Core i3
    • Memory: 2 GB RAM
    • Graphics: nVidia GTX 480, AMD Radeon 7870
    • Storage: 5 GB available space
    Minimum:
    • OS: OSX (64 bit versions)
    • Processor: 2 GHz Equivalent CPU
    • Memory: 4 GB RAM
    • Graphics: OpenGL 3 Compatible GPU
    • Storage: 5 GB available space

What Curators Say

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