- Terraforming Mars 2.11.6.3459/886 - 9 June 2026
Mission Journal: Patch #2.11.6.3459/886Date of entry: 2182/11/028 - Communication minimal - Readings are within acceptable range PatchnoteFix 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
- Terraforming Mars 2.11.6.3444/884 - 7 April 2026
Mission Journal: Patch #2.11.6.3444/884Date of entry: 2182/08/014 - Conditions are improving - Oxygen reached optimal level - Life finds a way Feature improvementsSteam Deck full compatibility.Bug fixesFixed 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 invi…
- Terraforming Mars 2.11.5.3420/880 - 19 March 2026
Mission Journal: Patch #2.11.5.3420/880Date of entry: 2182/07/022 - Atmosphere and temperature stabilized at 80% - We're still monitoring. Feature improvementsNew 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 fixesFixed 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 receivin…
- Terraforming Mars 2.11.4.3385/879 - 4 March 2026
Mission Journal: Patch #2.11.4.3385/879Date 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 fixesFixed 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 hol…
- Terraforming Mars 2.11.3.3323 - 17 February 2026
Mission Journal: Patch #2.11.3.3323Date of entry: 2182/01/04 Our engineers are working around the clock. Substantial improvements and stabilization of the atmosphere are their priorities. Bug fixesFixed 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…
- Terraforming Mars 2.11.2.3305/870 - 4 February 2026
Mission Journal: Patch #2.11.2.3305/870Date 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 fixesFixed a softlock case when clicking a Prelude card from the Valley Trust actionFixed softlock cases and errors in the TutorialFixed a softlock case after a player got replaced by AI in multiplayerFixed the issue with the “space” key in chatFixed AI always skipping their turnFixed cases of Solar Phase being skippedFixed cases of game desync during the final Greenery phaseFixed Robinson Industries gaining the production of the last resource it raised instead of the chosen oneFixed issue happening when trying to go to the Main menu during the “Waiting for players” phaseFixed Ocean placement from South Pole on Hellas being triggered again on replay/turn endFixed a misleading “Playing” label i…
- Terraforming Mars 2.11.1.3281/869 - 29 January 2026
Mission Journal: Patch #2.11.1.3281Date 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 fixesFixed 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 bugsRobinson Industries issueChat windo…
- Colonies is officially out and it's on sale for the Publisher Week - 22 January 2026
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 players49 Project cards, allowing you to purchase trade fleets or expand your usual strategies even further5 Corporation ca…
- Planets in sight, get ready to expand our Colonies - 15 January 2026
Terraforming Mars: new DLC Colonies is coming on January 22ndTerraforming Mars' latest DLC is coming on January 22nd at 7PM CET, save the date and have a look at its very brand new content. Or take the leap and discover an updated Collection Bundle including the base game and all the precedent DLCs:Adding a new Colony system, this DLC will push you to expand your horizons, develop a trade fleet and find a way to reap the benefits before anyone else. It includes 49 new project cards that interact with other DLCs while still standing on their own. Purchase your fleet, develop Warp Drives or dabble in Molecular Printing - the choice is yours. 5 powerful Corporations, including the colony-heavy Poseidon or the animal and plant-loving Arklight. 11 Colony tiles, each with their unique bonuses. Since they scale with the number of players, not all colonies will be available in every game — forc…
- Mars is not enough, let's expand our Colonies - 26 November 2025
Terraforming Mars: new DLC Colonies is coming soonThe outer solar system is the new frontier! Colonies are beginning to flourish on the moons of Saturn. The clouds of Jupiter are no longer beyond our reach. Even Pluto will prove to be useful to humanity. This is a perfect opportunity for the corporations to trade with the colonies, harvest resources, and build colonies of their own!New Content: Adding a new Colony system, this DLC will push you to expand your horizons, develop a trade fleet and find a way to reap the benefits before anyone else. It includes 49 new project cards that interact with other DLCs while still standing on their own. Purchase your fleet, develop Warp Drives or dabble in Molecular Printing - the choice is yours. 5 powerful Corporations, including the colony-heavy Poseidon or the animal and plant-loving Arklight. 11 Colony tiles, each with their unique bonuses. Si…
- Terraforming Mars 2.10.3.3080 - Patch Notes - 12 November 2025
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 fixesFixed generation counter getting stuck at “2” after the 2nd generationFixed load game failure (stuck at 99%)Fixed Mars surface blurry/shiny in medium visual settingFixed Thorgate display issueFixed Recyclon/Pharmacy Union display issueFixed Helion display issueFixed achievement "Birth of Venus" resets at game launchFixed achievements pop up appearing when unlocking an achievement you already haveFixed 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 consistencyFixed Decomposers #131/Ecological Zone #128 iconography consistencyFixed "+" signs missing on some c…
- Terraforming Mars 2.10.2.2997 - Patch Notes - 23 October 2025
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 2.10.2.2997-884Bug fixesFixed 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 E…
- Terraforming Mars 2.10.1.2779 - Patch Notes - 3 September 2025
Mission Journal: Patch #2.10.1.2779 Date of entry: 2151/01/28 Stability across the colony continues, though new anomalies test our resilience. Command has dispatched the latest update packet, delivering crucial system optimizations to keep operations on course. Initial reports confirm smoother processes and heightened efficiency, ensuring every corporation can advance the terraforming project with greater precision. Patch Notes — Terraforming Mars 2.10.1.2779 Bug fixes Fixed a softlock happening when viewing Game State while playing Prelude Fixed the Tie-breaker when the score is not tied Fixed some actions not being available to play Fixed Beginner corp sometimes being available after picking another corp & viewing cards Fixed Solar Phase/Research freeze Fixed misplaced icons on cards Fixed pass button during last greenery phase not working Fixed cost of the card displayed instead of "…
- Terraforming Mars 2.10.0.2634 - Patch Notes - 21 July 2025
Mission Journal: Patch #2.10.0.2634 Date of entry: 2150/10/08 Terraforming progress remains steady, but unexpected variables continue to surface. Fortunately, Command has just issued a new update packet—an essential calibration to our systems that promises to streamline operations and bolster long-term colonization efforts. Engineering teams report improved efficiency protocols and refined deployment strategies across all sectors. These adjustments, based on extensive data analysis and feedback from ground operations, are already showing measurable benefits. Patch Notes — Terraforming Mars 2.10.0.X UI Rework: Rework of the UI module - stability increase and better maintenance. UI is the most sensitive aspect of this update, please reach us via Discord if you encounter any issue! Bug fixes Fixed local game status not updating when passing turn to another human player. Fixed Ants #035 res…
- Terraforming Mars 2.9.1.2284 - Patch Notes - 30 April 2025
Mission Journal: Patch #2.9.1.2284 Date of entry: 2149/04/18 Power Node Delta triggered a low-output alert at 14:17 MST. Investigation revealed dust accumulation on the southern solar array beyond automated brush capacity—likely due to recent high-wind activity. Drone crew was dispatched for manual cleaning. Output returned to nominal levels within 90 minutes. Preventative sweep scheduled for all external panels over the next two sols. Patch Notes — Terraforming Mars 2.9.1.2284 Fixed freezes when AI uses Ants and the target has Protected Habitats. Fixed unlimited resources issue (Microbes, Floaters…). Fixed glitch of Viron’s action. Vixed Research costing 11 MC to play with Valley Trust. Fixed effect of Ecological zone card not triggering. Fixed wrong label in the Rules UI.
- Terraforming Mars 2.9.0 - Patch Notes - 24 April 2025
Mission Journal: Patch #2.9.0 Date of entry: 2149/02/11 Agricultural pod 3 reported a sudden drop in internal humidity levels at 06:23 MST. Initial diagnostics suggested a fault in the misting array, later traced to a cracked valve in the secondary water line—likely stress damage from last week’s temperature fluctuations. Engineering isolated the line, replaced the faulty component, and recalibrated the delivery schedule. Humidity has since stabilized and crop health remains unaffected. Patch Notes — Terraforming Mars 2.9.0 Fixed softlock when a player leaves a game and is replaced by AI. Fixed the picker to allow the selection of several resources. Fixed selecting Venus during the Solar Phase creating chain-Nullrefs and locking the game. Fixed Wild tag issue on Gyropolis. Fixed softlocks in the tutorial. Fixed Mining Guild being granted a Steel production when placing an Ocean during S…
- ATTENTION: Save compatibility with next update - 22 April 2025
Hello Terraformers, With the next update coming on Thursday, April 24, we predict that almost all save files will become incompatible with the new update. This is due to an issue with a Unity Engine update that is required with the upcoming patch. We highly recommend that you complete all current in-progress games before the patch is deployed on Thursday. We apologize for any inconvenience caused, but appreciate your understanding.
- Terraforming Mars 2.8.3.2159 - Patch Notes - 1 April 2025
Mission Journal: Patch #2.8.3.2159 Date of entry: 2148/01/21 Habitat 6 experienced a minor water recycling glitch this morning; sensors indicated impurities above safe thresholds. Thankfully, engineering identified a clogged filter—likely sediment buildup from minerals in Martian soil. They promptly replaced the filter cartridge and reset the system. Now running smoothly again. Patch Notes — Terraforming Mars 2.5.0.130140 Fixed cases of corrupted saves. Fixed softlock cases and duplicates when UI offered a choice. Fixed Nullref cases. Fixed AI taking a lot of time to play after replacing a player. Fixed effects giving a Wild resource. Fixed effect text of Corporations. Re-enabled Sponsored Academies. Fixed Pharmacy Union getting more disease & tags than it should. Fixed Pharmacy Union softlock when playing a Science & Microbe tag card. Fixed amount of MC Splice players get during corp.…
- Big Box Promo Pack Delivery to Mars - 10 February 2025
Mission Journal: Big Box Promo Pack Delivery to Mars Date of entry: 2155/06/05 Two new corporations are on their way to join the race to Terraform the Red Planet, bringing over 18 new projects focusing mainly on using asteroids and working with other projects. They've even seen to it that previously planned projects are being enhanced. The work to make Mars habitable never stops, and with all of this, we'll be getting ever closer to our goal of a new world mankind can call home! https://store.steampowered.com/app/2948110/Terraforming_Mars__Big_Box_Promo_Pack/ Now Available The Big Box Promo Pack is now live on Steam and Mobile. Prepare your asteroids for harvesting, and ready yourself to fight disease because you will be working hard to prepare Mars for human life when this DLC lands. Get the DLC for yourself now! New Corporations Two new corporations join the ongoing work to enhance li…
- Big Box Promo Pack is on its way to Mars - 29 January 2025
The battle to become the first corporation to terraform the red planet is getting more fierce! With the introduction of the Big Box Promo Pack, more corporations and new cards are coming. Experience all the new depth of strategy and tactics on February 10 on Steam and Mobile. https://store.steampowered.com/app/2948110/Terraforming_Mars__Big_Box_Promo_Pack/
