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 (776) - 97% of the 776 user reviews in the last 30 days are positive.
All Reviews:
Overwhelmingly Positive (27,600) - 98% of the 27,600 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?

“The price will not increase after release from Early access.”

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 (257)

May 25

Friday Facts #244 - Localised plurals & Modernisation progress

New Python developer
Mobile users may see that the website is significantly easier to read today, that is all thanks to our new Python developer Sanqui. Apart from making out website more mobile friendly, we have a lot of tasks on the backlog that he will start working on soon.

His first major task is to speed up and optimize the matching server, with which he is already making some progress. A bigger rewrite for the long term is underway, but in the last week he has reduced a lot of the slowness and timeouts people were seeing during peak times. He will be taking over our database management and web administration from HanziQ, as well as spending time cleaning up our codebase, maintaining our web services, and developing features for the mod portal.

Plural form localisations
Plural localisations are needed here and there in Factorio. For example, when the time is specified, it can be either 1 minute 5 seconds, or 5 minutes and 1 second, so there needs to be some system to select the correct word depending on the count.

In 0.16, we have this very specific custom system of specifying some of the translations by 3 different forms, while very specific code selects the correct one depending on the corresponding number:

English:
minute1=minute minute2-4=minutes minute5+=minutes

The English translators might be quite surprised, why do we need 2 different translations for plural of minute? The Czech people reading will understand, as the Czech localisation file looks like this:
minute1=minuta minute2-4=minuty minute5+=minut

Yes, we (Czech people) have a different kind of plural for count 2,3,4, than the other plurals.

The problem is, that we eventually discovered that there are other languages than English and Czech (!) and plural possibilities in other languages are not as simple as English only speakers tend to think. For a reference, here is the sum up of the common plural forms.

This made it clear, that having different translation key for every possible form for every language would be too crazy, so we invented something more generic. In 0.17, the translation of X minutes (the number is now included in the translation to allow to put it on different position, or to add some other word somewhere) will look like this:

English:
minutes=__1__ __plural_for_parameter_1__[1]__minute__[rest]__minutes__

Czech:
minutes=__1__ __plural_for_parameter_1__[1]__minuta__[2-4]__minuty__[rest]__minut__

Romanian:
minutes=__1__ __plural_for_parameter_1__[1]__minut__[ends in 01-19]__minute__[rest]__de minute__
etc.

Progress on engine modernisation
The rewrite of the rendering framework goes well. We are at the point where the game looks exactly the same (with minor fixes to line rendering) as our main 0.17 branch, and the only major thing that is missing is proper error handling - for example, we don't want the game to terminate if a screenshot command fails for whatever reason. I was surprised at how many things we had to rewrite, but we took our time, and I think it is already worth it. The game rendering performs significantly better (well, at least on CPU side of the pipeline for now - more on that in some future Friday Facts) in both OpenGL and DirectX.



Speaking of which, some people were wondering why do we even bother with DirectX, and not just to use OpenGL everywhere. The reason is Windows is still the main OS for PC gaming and for some reason, we can't squeeze as much performance from OpenGL as we can from DirectX (we are seeing about 30% more time spent in calls to OGL as opposed to D3D). It also seems the OpenGL driver quality is all over the place. We already ran into the problem where our first implementation of building sprite atlases worked great on Windows and macOS, but was so inefficient on Linux it took over half an hour for the game to load.

We are actually trying to design the new rendering around architecture of current-gen APIs - Vulkan/Metal/DirectX 12 - and in future we would like to create Vulkan and Metal backends, but we are focusing on older APIs first as a large portion of our current player-base doesn't have Vulkan capable hardware. By using OpenGL 3.3 Core and DirectX 11 feature level 10.0, we should cover 99% of our current players (according to our Steam hardware survey statistics). These APIs should be supported by any dedicated GPU manufactured in the past 10 years, and integrated Intel HD Graphics since Sandy Bridge. We'll still leave 1% of players behind, so they are going to be stuck with 0.16, similar to when we dropped 32-bit support, but everybody else should benefit from better performance and hopefully a better looking game eventually.

As always, let us know what you think on our forum
18 comments Read more

May 22

Factorio 0.16.44 released

Minor Features
  • Added technology price multiplier PvP scenario config.
Changes
  • Underground belt marked for deconstruction no longer connects to other underground belts.
Bugfixes
  • Fixed some cases of fast replacement by underground belt. more
  • Fixed corrupted config.ini in Steam cloud would prevent the game from starting.
  • Fixed that using "Save and play" feature in the freeplay could specify the official freeplay map to be always that one forever. more
  • Fixed underground belt connection overlay when hovering over another underground belt. more
  • Fixed a crash when mods define empty result items. more
  • Fixed a crash when switching games and joining quickly in the server browser.
  • Fixed that clicking rail planner with no available path while recording replay invalidated all other actions of the replay. more
  • Fixed a crash that would happen after opening a library blueprint that contained only entities from a disabled mod. more
  • Fixed LuaEntityPrototype::braking_force return value. more
  • Fixed LuaPlayer::ticks_to_respawn would read in seconds. more
  • Fixed certain type of energy source migrations. more
  • Fixed rare possibility of crash when two trains crash into each other. more
  • Fixed a rare crash that occurs when train collides in a way, that its position is reserved back while approaching closed signal which caused path recalculation. more
  • Fixed PvP error when setting map height to 0. more
  • Fixed construction robot tutorial breaking when removing the radar from the storage chest. more
  • Fixed crash when adding train station to a train while the train is modified (added/removed rolling stock). more
  • Fixed that destroying part of a cliff with tile ghost under it destroyed the whole part of the cliff. more
  • Fixed browse games dialog problems with the active game not being updated while searching. more
Modding
  • Added support to set ReactorPrototype::neighbour_collision_increase which controls how much a reactor extends when connected to other reactors.
Scripting
  • Allow technology_price_multiplier to be less than 1 by script/scenario only.
  • Added support for localised strings in LuaGameScript::write_file.

You can get experimental releases by selecting the 'experimental' beta branch under Factorio's properties in Steam.
17 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

Windows
Mac OS X
SteamOS + Linux
    Minimum:
    • 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.
    Recommended:
    • OS: Windows 10, 8, 7 (64 Bit)
    • Processor: Quad core 3Ghz+
    • Memory: 8 GB RAM
    • Graphics: 2GB Video memory
    • Storage: 1 GB available space
    Minimum:
    • 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
    Recommended:
    • 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
    Minimum:
    • 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
    Recommended:
    • 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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