Terraforming Mars - Terraforming Mars 2.8.3.2159 - Patch Notes
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Terraforming Mars 2.8.3.2159 - Patch Notes

Date: 2025-04-01 10:39:14

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. selection.
  • Fixed visibility of opponents’ resources.
  • Fixed double action replay in local games.
  • Balancing for AI using Pharmacy Union.
  • Fixed corps being drafted in the wrong draft modes.
  • Fixed drawing issue “A card drawn is in the deck”.
  • Fixed the triggering of passive effects when gaining multiple resources.
  • Fixed forfeiting during a turn with an already played action does not make the bot take control.
  • Fixed cases in which legal placement for Greeneries would disappear.
  • On Hellas, Helion can now select Heat to decrease South Pole melting cost & can skip the cost.
  • Fixed the loss of ELO ranking when two players are timed out.
  • Fixed layout of Victory points on cards.
  • Fixed payment of Stratospheric Birds + Floater payment.
  • Fixed price of Venus Waystation + Venus Governor.
  • Fixed AI not losing all their 8 MC when playing Pharmacy Union.
  • Fixed player being unable to make Pharmacy Union choice when playing a 2 Science tags card.
  • Fixed Pharmacy Union not losing MC if under 4MC when a Microbe is played.
  • Now possible to create a new Asmoconnect account with a long mail address.
  • Fixed icon missing for Pharmacy Union’s choice to flip the card & gain 3 TR.
  • On mobile, fixed View Game State button interaction during Prelude Selection.
  • Fixed Rotator Impact + Phobolog Titanium discount interaction.
  • Achievements fixes (It’s a Steal, Consultant, Landlord, Winner Winner Terraformer, Ultimate Success, Grand Champion).
  • On Hellas, Helion can now select Heat to decrease the South Pole melting cost.
  • Fixed issue with game saving in solo mode.
  • Fixed AI playing 2 times when replacing a player.
  • Fixed displaying “AI Hard” after a player disconnected then reconnected.
  • Fixed Gyropolis counting Wild tag twice.
  • Fixed grey color of Greenery tiles.
  • Fixed softlock cases in the tutorials
  • Many other minor fixes.
  • Various minor UI fixes.
  • Various minor loc tweaks and fixes.


Known Issues


  • Issue preventing selecting more than one unit of a resource to pay as an alternative price or condition.
  • Mining Guild is wrongfully granted a steel production when placing an ocean during Solar Phase.
  • UI hitboxes of "return to previous screen" is too big.
  • Viron corporation's action glitch out.
  • Card Action of Asteroid Deflection System not displayed.
  • Error messages are appearing regularly.
  • During the Solar Phase, selecting Venus to increase sometimes creates chain-Nullrefs and locks the game.
  • Nitrite Reducing Bacteria doesn't offer the option to increase TR.
  • Missing alternative cost for Stratospheric Birds when using Floaters.
  • Predators can steal Microbe resources (they shouldn’t).
  • Softlock cases in the tutorial.
  • Resolution Setting comes back to the resolution of the screen when changed in windowed.
  • Inventrix effect text should be updated to have Venus Next in the requirements it affects
  • It’s possible to place a colorless Greenery tile during the final Greenery phase.
  • Bad use of some cards from AI.
  • In the ingame log, discounts are shown with current discounts instead of discounts that applied when played.
  • When there aren't enough cards, the popup is displayed too fast.