About the Game
The taming of the Red Planet has begun!
Corporations are competing to transform Mars into a habitable planet by spending vast resources and using innovative technology to raise temperature, create a breathable atmosphere, and make oceans of water. As terraforming progresses, more and more people will immigrate from Earth to live on the Red Planet.
In Terraforming Mars, you control a corporation with a certain profile. Play project cards, build up production, place your cities and green areas on the map, and race for milestones and awards!
Will your corporation lead the way into humanity’s new era?
Screenshots
5 images
Version Information
Steam Patch Notes
Official update history
Mission Journal: Patch #2.11.6.3459/886
Date of entry: 2182/11/028 - Communication minimal - Readings are within acceptable range
Patchnote
Fix of an issue with DLC unlock via product keys.
Fix of a server sync issue.
Fix a store achievement getting the game stuck if the store is offline.
Fix a game loading issue.
Thank you all!
The TFM Team
Mission Journal: Patch #2.11.6.3444/884
Date of entry: 2182/08/014 - Conditions are improving - Oxygen reached optimal level - Life finds a way
Feature improvements
Steam Deck full compatibility.
Bug fixes
Fixed resuming game issue with Prelude, Valley Trust & Extended Start.
Fixed in the Card Resources/Actions/Effect pop ups, when displaying the amount of resources a card is holding, the number 1 was not displayed when the card only holds 1 resource.
Fixed when placing a tile, the tooltip doesn’t display the amount of resources you will obtain, either because of bonuses on the tile or because of passive effect upon tile placement.
Fixed AI being able to place 2 Oceans on the same tile.
Fixed being able to use opponent’s Titan-floating Launch Pad #C44 action to trade.
Fixed Splice effect not activating in Solo challenge.
An important announcement has been made publish on the game discord, we invite you to read it carefully.
The TFM Team
Mission Journal: Patch #2.11.5.3420/880
Date of entry: 2182/07/022 - Atmosphere and temperature stabilized at 80% - We're still monitoring.
Feature improvements
New Solo Challenge optional rule: Extended Start. During setup, choose from 3 Corporations and 6 Preludes (if the Prelude DLC is active) instead of the normal 2 and 4.
Better feedback for online player search.
Bug fixes
Fixed a softlock case during Colonies solar phase if no Colonies can gain Trade level.
Fixed a softlock case in Solo mode, using Valley Trusts first action, by choosing Eccentric Sponsor #P11 on Earth Catapult #070.
Fixed a softlock case in Solo Mode with Solar Phase enabled.
Cleaned some UI elements during tutorial.
Fixed draft phase offering 5 cards with the same card.
Fixed UI displaying “Corp Name Displays Here”
Fixed the AND search function in the Compendium.
Fixed Sponsored Academies #247 causing opponents not receiving cards, and player receiving extra.
Fixed Venusian Plants #261 that couldn’t be played when there were no cards able to accept animals/microbes.
Fixed production icons display order on cards.
Fixed resources picked up during the final Plant conversion phase not appearing in the UI.
Fixed no tooltip displayed in final Plant conversion phase when hovering tiles to place greeneries.
Fixed Mars University #73 Discard button that could be clicked without selecting cards.
Fixed a Viron display issue.
Fixed the “Confirm” label that appeared briefly behind City/Greenery/Ocean icons.
Mission Journal: Patch #2.11.4.3385/879
Date of entry: 2182/03/018 - Surges detected in the secondary core of the gravity generator. Engineer team was quickly on site and resolved the situation.
Bug fixes
Fixed game corruption case when launching the tutorial from the main menu popup.
Fixed cost rebate not working for some action cards.
Fixed softlock case in Solo mode with Solar phase enabled.
Fixed multipliers icons (white instead of black)
Fixed negative MC production not subtracted at the end of a generation.
Fixed the “Your time is up” message appearing in solo games.
Fixed Atmoscoop #217 that couldn’t being played after both Temperature and Venus were raised to max.
Added a “Protection” icon on top of protected resources on the left UI notifications.
When a card/effect lets the player put resources on another card, we now display the compatible cards with the resources they're currently holding.
We now display tags associated to each card in the Card Resources UI.
Fixed the “Setting” button in the ingame menu not always highlighted anymore.
Fixed missing textures on the Restricted Area #199 3D tile.
Fixed some blue cards having their actions listed in the wrong order.
Fixed Cutting Edge Technology #X18 "Requirements icon" wasn't displayed the first time you open the card.
Fixed some blue cards which actions & effects icons weren’t separated properly.
Fixed misleading "Passed their turn" banner not displayed anymore after playing Prelude cards.
Fixed AI now placing Commercial District #085's tile close to as many Cities as possible.
Various UI fixes.
Mission Journal: Patch #2.11.3.3323
Date of entry: 2182/01/04 Our engineers are working around the clock. Substantial improvements and stabilization of the atmosphere are their priorities.
Bug fixes
Fixed AI playing cards increasing player’s TR.
Fixed using infinite standard projects with Helion in some cases.
Fixed softlock case playing Self-Replicating Robots #210.
Fixed Urban Decomposers #C48 not playable with not-on-Mars cites.
Fixed Venus Solar Phase is not deactivated when deactivating Projects/Corporations buttons during game creation.
Fixed Insects #148 giving the wrong amount of Plant production when you have a wild tag.
Fixed AI playing Predators #024 eating its own resources.
Fixed error when using the Compendium during a game.
Fixed issue with Robotic Workforce #086 interacting with Prelude cards with a Building tag.
Fixed desync on the final score screen, causing differences on scores.
Fixed AI increasing already maxed out parameters.
Fixed Refugee Camps #C33 not working correctly with Helion.
Fixed Colonies Board, Logs & Cards Played buttons disappearing
Added Colonies icon on Colonies Corporation cards during draft.
Fixed some public games information not being displayed if you don't own the corresponding DLC.
Added VP icon on the corporation cards
Minor UI and localization fixes.
Fixed keyboard not opening on mobile for specific menus.
Mission Journal: Patch #2.11.2.3305/870
Date of entry: 2181/04/16 From the red surface of Mars, our engineers have stabilized the core systems. Some anomalies remain, but the mission continues.
Bug fixes
Fixed a softlock case when clicking a Prelude card from the Valley Trust action
Fixed softlock cases and errors in the Tutorial
Fixed a softlock case after a player got replaced by AI in multiplayer
Fixed the issue with the “space” key in chat
Fixed AI always skipping their turn
Fixed cases of Solar Phase being skipped
Fixed cases of game desync during the final Greenery phase
Fixed Robinson Industries gaining the production of the last resource it raised instead of the chosen one
Fixed issue happening when trying to go to the Main menu during the “Waiting for players” phase
Fixed Ocean placement from South Pole on Hellas being triggered again on replay/turn end
Fixed a misleading “Playing” label in online multiplayer
Fixed CEO's Favorite Project #149 being able to add resources on cards with no resource on them.
Fixed empty list in Flooding #188 UI
Fixed error when clicking on cards in the Compendium
Fixed chat not available anymore in multiplayer games
Fixed chat/players/leaderboard not available anymore in the Online UI
Fixed Titan Floating Launch-Pad #C44 not adding 2 Floaters when initially playing it with no other Floater cards available
Fixed various errors in the tutorial
Fixed action decrease cost not displaying changes when MC cost is automatically decreased when player doesn't have enough
Fixed flying to Miranda correctly giving colony bonus of 1 card, but the UI showed 2 cards going in hand
Fixed CEO’s Favorite Project #149 has a Wild Resource icon on it that wasn't here before
Fixed when list of tags become scrollable only one column of tags is displayed instead of 2
Fixed Urban Decomposers #C48 City requirement icon is smaller than the Colonies requirement icon
Fixed localization key issue in tutorial
Mission Journal: Patch #2.11.1.3281
Date of entry: 2181/04/12 Atmospheric readings are stabilizing. Spike in productivity and terraforming have been registered.
Feature extension!
Generalized Generous Host - from now on, you don’t need to be friends with a player to join a game when you don’t own the DLCs the game is running. Everybody can play with anyone, anytime!
Bug fixes
Fixed version check system (requiring to run the latest version to access the online features) - was creating all kinds of issues, including the broken games in the “Resume” interface.
Fixed the bug preventing you from inspecting your own game state whilst waiting for other players.
Fixed the Tags screen (was impossible to scroll)
Fixed AI receiving resources even without a proper card to host them.
Fixed “No active game” label wrongfully displayed in the “Join game” interface.
Known bugs
Robinson Industries issue
Chat window not available in multiplayer
Can’t use the space key in the lobby chat
Hellas + Ocean issue
Hello terraformers, we're happy to celebrate the launch of our latest DLC "Colonies".
This new, major DLC significantly enhances the core experience by taking players beyond the red planet and into the outer solar system. Colonies introduces a full colony system, interplanetary trade and a merchant fleet, allowing players to build and grow off world settlements while competing for powerful trading advantages before rival corporations secure them. New corporations, project cards and colony tiles add substantial strategic depth, with each match offering different opportunities that force players to adapt their approach and rethink long term planning.
New Content:
A new Colony system, alongside the merchant fleet. Establish colonies and trade with them to outpace other players
49 Project cards, allowing you to purchase trade fleets or expand your usual strategies even further
5 Corporation cards: Aridor, Arklight, Polyphemos, Poseidon and Storm Craft
11 Colonies, each with its unique bonuses
And become good things come in pairs, we are also joining Twin Sails Interactive Publisher Week!
Starting from January 22nd 7PM CET until February 5th, Terraforming Mars is on sale with a 65% discount! It's your chance to grab the base game plus its DLCs at a reduced price, including "Colonies"!
[dynamiclink href="https://store.steampowered.com/app/4143120/Terraforming_Mars__Colonies/"]
[dynamiclink href="https://store.steampowered.com/app/800270/Terraforming_Mars/"]
Check it out!
Mission Journal: Patch #2.10.3.3080
Date of entry: 2153/02/21 Atmospheric readings are rising. Toxic elements are still present, caution remains advised.
Patch Notes — Terraforming Mars 2.10.3.3080
Bug fixes
Fixed generation counter getting stuck at “2” after the 2nd generation
Fixed load game failure (stuck at 99%)
Fixed Mars surface blurry/shiny in medium visual setting
Fixed Thorgate display issue
Fixed Recyclon/Pharmacy Union display issue
Fixed Helion display issue
Fixed achievement "Birth of Venus" resets at game launch
Fixed achievements pop up appearing when unlocking an achievement you already have
Fixed Done button can't be clicked on if you scroll down in Filters (online)
Fixed Artificial Photosynthesis #115 using "/" instead of "OR"
Fixed ressource production cards iconography consistency
Fixed Decomposers #131/Ecological Zone #128 iconography consistency
Fixed "+" signs missing on some cards
Fixed Crash Site Cleanup #X17 playable if someone's Plant production is lowered without any Plants subtracted
Fixed "Minus X" Ressource wrongfully displayed as costs in Action cards
Fixed various UI issues
Mission Journal: Patch #2.10.2.2997-884
Date of entry: 2152/06/12 Atmospheric density in equatorial sectors shows steady gains toward habitability. Minor CO₂ conversion drops detected—linked to recent volcanic shifts near Elysium Planitia.
Recalibration protocols are underway, with oxygen levels stabilizing across biosphere grids. Agricultural dome expansion remains on schedule pending orbital approval.
Patch Notes — Terraforming Mars 2.10.2.2997-884
Bug fixes
Fixed issues with forfeiting/launching new games.
The game no longer gets stuck when the AI takes over a player who leaves an online match.
Fixed a freeze that could happen during the endgame plant conversion phase.
Fixed an issue where a card action could appear as available when it shouldn’t be.
Fixed using Floaters from Dirigibles #222 as payment.
Fixed duplicated icons cases.
Self-Replicating Robots #210 doesn't count anymore for the Eccentric Award.
Fixed a freeze caused by Corroder Suits #219.
Fixed a game-breaking bug with a Self-Replicating Robots #210 x Olympus Conference #185 interaction.
Fixed Great Dam #136 tile sometimes not being available on a compatible spot.
Fixed a crash when checking the scoreboard in solo mode.
Online game filters now work properly.
Players can now see rankings correctly in the Join Game screen.
Fixed Manutech’s resource payment's order of resolution.
Fixed an issue with the flow of Hot Seat mode.
In local games, Milestones and Awards no longer show 1st player as “You”.
The full HUD now displays correctly during card actions and resource stealing.
Fixed cases where the UI could disappear.
Fixed a problem when loading a tutorial for the second time.
AI that replaces a player now behaves correctly during the draft.
Fixed an issue where Sponsored Academies #247 effects could be canceled.
Crash Site Cleanup #X17 now only playable when Plants were removed, not Plant production.
Fixed a display bug for card conditions.
Added the missing text for Asteroid Deflection System X14.
Fixed the graphic quality option so it actually changes visuals at high settings.
Restored the side scroll bar appearing after joining a game.
Adjusted the collision box for the decrease/increase-cost arrows.
Fixed Immigrant City’s icon appearing on top of text.
The menu icon now works during the research phase.
You can now switch between players correctly once one is selected.
Fixed the "Ignore" list.
Harmonized the display of “Minus X” resources as costs on action cards.
Fixed an icon mistake on Advanced Alloys #071.
Fixed a visual glitch where confirmation text appeared behind map icons.
Fixed an order of resolution issue between Viral Enhancer #074 and Potatoes #X28.
Fixed various interface issues.
Current Release
v2.1.0.130060
Uploaded Apr 06, 2024
System Requirements
How to Install
TerraformingMars.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
198 MB
v2.1.0.130060
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Download Terraforming Mars for PC with a direct link or via torrent. Get the full version of Terraforming Mars for free. Terraforming Mars is a Strategy released by Artefacts Studio.