Terraforming Mars 2.11.6.3459/886
Delivered update
Steam PC edition
Terraforming Mars
Compete as corporations in the digital version of the board game. Combine cards and production systems to reach shared planetary milestones, while watching which opportunities your rivals can take first.
From the publisher
Updates & announcements
Reviewed October 17, 2026 · Publisher news for this Steam edition.
Your content route
Modding research
No current exact-edition installation method is verified.
Use the unmodified client pending an exact-game method. No guessed paths, loaders or server-save backup method are supplied.
- Independent open-source Terraforming Mars implementations and Tabletop Simulator Workshop items are different software and were rejected as mods for Steam app800270.
Know your edition
Game details
Edition scope
This guide’s update and mod instructions apply to the identified Steam PC edition. Other stores, console releases and test branches can differ.
windows · mac
Community context
Steam displays 61% positive across 18 reviews in the last 30 days at this review. This is a small sample.
Review aggregates describe the displayed sample and can change.
Sources & review
Reviewed October 17, 2026. Exact editions and mod requirements can differ across stores and branches.
This is an informational guide. Automatic mod-folder preparation and package installation are not enabled for this game in Heimdall Link.