Factorio is a game about building and creating automated factories to produce items of increasing complexity, within an infinite 2D world. Use your imagination to design your factory, combine simple elements into ingenious structures, and finally protect it from the creatures who don't really like you.
Recent Reviews:
Overwhelmingly Positive (823) - 97% of the 823 user reviews in the last 30 days are positive.
All Reviews:
Overwhelmingly Positive (37,339) - 98% of the 37,339 user reviews for this game are positive.
Release Date:
Feb 25, 2016

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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?

“We have been working on Factorio for over 5 years. The game is very stable and is highly optimised for prolonged gameplay and creating huge factories. We have sold over 110,000 copies on our website, and we feel now is the right time to release to a wider audience.”

Approximately how long will this game be in Early Access?

“Our plans for release come as part of an ongoing process, and we are constantly adding new features and content. When we feel the game is complete we will release the full version, and our current estimate is that this will take 8-12 months.”

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

“In the full version we hope to have a polished GUI, a multiplayer matching server, integration of mods for players and servers, and a number of other finishing touches and additions to the core gameplay.”

What is the current state of the Early Access version?

“The game has a very strong content base, rich with interesting mechanics and features. Many players report they are still having fun on their maps even after hundreds of hours of gameplay, alongside multiplayer support, and a dedicated modding community.”

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

“No, the price now is the final price.”

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

“The community is a vital part of our development process. We announce any planned features far in advance so we have time to read peoples' opinions and comments, and for us to discuss the different points of view players may have. Community suggested ideas are commonly brought up in team discussions, and we value highly the input each individual player can have.”
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Recent updates View all (325)

March 25

Version 0.17.18 released

  • Dragging power poles over ghosts of the same type will revive them. more
  • Replaced the hand graphic in the quickbar with a selected graphic, so blueprint books are visible.
  • Solved train positioning when being built by robots. more
  • Fixed that playing Factorio in full-screen mode on macOS would hide all notifications. more
  • Allow commas with spaces after in color tags. more
  • Fixed the mechanic of saving a scenario locally when joining a multiplayer game that uses a scenario you don't have didn't work correctly. more
  • Fixed that the burner light would still glow even when the entity is sleeping. more
  • Assembler copy/paste now works correctly when pasting both recipe and direction with fluid mixing around. more
  • Tool shortcut bar selection list can be closed with ESC. more
  • Fixed that some technologies wouldn't show in the technology list if they were fully researched. more
  • Fixed incorrect zooming speeds when using keyboard to zoom. more
  • Blank property expression names in map gen settings JSON are ignored. more
  • Seed1 arguments above 255 to noise functions no longer crash the game, warning about the upper bits being ignored, instead. more
  • Fixed broken supply challenge. more
  • Fixed slow horizontal trackpad scrolling in the tech tree view. more
  • Fixing one situation of underground pipe connection over a ghost. more
  • Fixed blueprint icons not disappearing when using set_quick_bar_slot more
  • Fixed PvP force modifiers were being overwritten. more
  • Fixed "graphics_variation" was read-only on entities of type "corpse". more
  • Fixed buildability check of some fluid entities in blueprints. more
  • Fixed gui layouting related to having more squashable elements with different minimal sizes in one row/column.
  • Fixed possible crash when hovering the statistics graphs.
  • Fixed a crash when using LuaGameScript::show_message_dialog during on_init.
  • Fixed headless server would hang when shutting down on Windows. more
  • Fixed interaction of pipe underground connections of different reach. more

You can get experimental releases by selecting the 'experimental' beta branch under Factorio's properties in Steam.
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March 22

Friday Facts #287 - Just bugs again

Read the post on our website

This week has been non-eventful. We are fixing bugs. There is not much to say, and I have updated the graph to reflect the status of the ongoing Dev vs. Bug war:

The massive spike is the specific crash we talked about in the last FFF.

EGX Rezzed
We will be attending EGX Rezzed in 2 weeks. This week I have been finishing all the preparation work, such as furniture and equipment rental, accommodation, our itinerary etc. We will have a booth in the South Vault, with a couple of PCs for playing the game. If you are also attending be sure to pop by (We might have some free swag).

This will probably be the only conference we will exhibit at this year, as there is some non-trivial team effort in arranging our attendance, and we want to focus that effort into finishing 1.0. Saying that, each time we exhibit at a new conference we learn a lot, and its good to have a couple under our belt before deciding our post-1.0 event plans.

Splitter belt compression
There were different kind of Splitter compression problems over the years and we had to apply more and more fine-tune tricks to keep it as good as possible in all the special cases, which became even more complicated with input/output priorities etc.

Our situation became worse in 0.16 by the fact, that we started to have the debug option of show-transport-line-gaps, which suddenly made even the smallest gap, previously unnoticeable, possible to be seen by the players. On top of that, once we made the gaps 0.25 of a tile in 0.17, even without the debug option, the circuit network can now easily notice any slight compression imperfection. This basically means, that the proper compression of a belt has more value.

When we encounter situations like this in the bug reports (and similar), we have to try to fix it.


In this situation for example, the timing of the incoming items allows the Iron plate to move through the Splitter, but in a way, that it is slightly further from the previous.The internal code is logical, but from the players perspective, it doesn't really make sense that adding an extra item on the input can make the output little bit less compressed.

There were a few different ideas of how to fix it. One of them was that the Splitter could basically have a tiny internal inventory that would work as a buffer. But due to the change to the logic and possible performance implications, we decided this idea isn't good enough.

The solution we settled on is actually quite simple. This is the way how Splitter worked before, it had 0.5 tile long ramps of inputs, and 0.5 tile long ramps of outputs.

So we just extended the input ramp by a little (+0.2 tiles) and used that extra length as a small buffer. With some extra logic to properly transfer the position of the items from input to output, this solution was able to solve all the little timing problems.


The only real change for players is that Splitters need 20% more items for the belt to be fully backed up which is kind of insignificant.

Invalid usernames
As you might remember, even if you've bought Factorio from Steam, in order to join multiplayer, the game asked you to register an account. We have the typical restrictions on username characters: alphanumerics and the characters ._-.

Back in December, one of our developers made a slight code edit that inadvertently made it possible to register an account from in-game without checking whether the username is valid... In two months we have gathered 1,945 registered accounts that don't conform to the intended restrictions. Things mostly work fine with arbitrary usernames, but one big problem is that it's impossible for server owners to ban people with spaces in their usernames!

Most people who registered an account like that intended no harm, but sadly we can't let arbitrary usernames stand, so they will be asked to change their username on factorio.com when they attempt to log in.

My apologies to users too sexy for your party, NOT THE BEES!!!!!, your mum lives in a tent, and ' or 1=1; --.

As always, let us know what you think on our forum.
10 comments Read more
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About This Game

Factorio is a game in which you build and maintain factories. You will be mining resources, researching technologies, building infrastructure, automating production and fighting enemies. In the beginning you will find yourself chopping trees, mining ores and crafting mechanical arms and transport belts by hand, but in short time you can become an industrial powerhouse, with huge solar fields, oil refining and cracking, manufacture and deployment of construction and logistic robots, all for your resource needs. However this heavy exploitation of the planet's resources does not sit nicely with the locals, so you will have to be prepared to defend yourself and your machine empire.

Join forces with other players in cooperative Multiplayer, create huge factories, collaborate and delegate tasks between you and your friends. Add mods to increase your enjoyment, from small tweak and helper mods to complete game overhauls, Factorio's ground-up Modding support has allowed content creators from around the world to design interesting and innovative features. While the core gameplay is in the form of the freeplay scenario, there are a range of interesting challenges in the form of Scenarios. If you don't find any maps or scenarios you enjoy, you can create your own with the in-game Map Editor, place down entities, enemies, and terrain in any way you like, and even add your own custom script to make for interesting gameplay.

Discount Disclaimer: We don't have any plans to take part in a sale or to reduce the price for the foreseeable future.

What people say about Factorio

  • No other game in the history of gaming handles the logistics side of management simulator so perfectly. - Reddit
  • I see conveyor belts when I close my eyes. I may have been binging Factorio lately. - Notch, Mojang
  • Factorio is a super duper awesome game where we use conveyor belts to shoot aliens. - Zisteau, Youtube

System Requirements

Mac OS X
SteamOS + Linux
    • OS: Windows 10, 8, 7, Vista (64 Bit)
    • Processor: Dual core 3Ghz+
    • Memory: 4 GB RAM
    • Graphics: 512MB Video Memory
    • Storage: 1 GB available space
    • Additional Notes: Low sprite resolution and Low VRAM usage.
    • OS: Windows 10, 8, 7 (64 Bit)
    • Processor: Quad core 3Ghz+
    • Memory: 8 GB RAM
    • Graphics: 2GB Video memory
    • Storage: 1 GB available space
    • OS: macOS High Sierra, Sierra, OSX El Capitan, Yosemite, Mavericks
    • Processor: Dual core 3Ghz+
    • Memory: 4 GB RAM
    • Graphics: 512MB Video Memory
    • Storage: 1 GB available space
    • Additional Notes: Low sprite resolution and Low VRAM usage
    • OS: macOS High Sierra, Sierra, OSX El Capitan, Yosemite, Mavericks
    • Processor: Quad core 3GHz+
    • Memory: 8 GB RAM
    • Graphics: 2GB Video memory
    • Storage: 1 GB available space
    • OS: Linux (tarball installation)
    • Processor: Dual core 3Ghz+
    • Memory: 4 GB RAM
    • Graphics: 512MB Video Memory
    • Storage: 1 GB available space
    • Additional Notes: Low sprite resolution and Low VRAM usage
    • OS: Linux (tarball installation)
    • Processor: Quad core 3GHz+
    • Memory: 8 GB RAM
    • Graphics: 2GB Video memory
    • Storage: 1 GB available space

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