How many people are playing Terraforming Mars - Colonies right now?

Terraforming Mars - Colonies is app 4143120 on Steam. Player counts appear once the tracker has sampled it.

When was Terraforming Mars - Colonies released on Steam?

Terraforming Mars - Colonies was released on Steam on 22 Jan 2026.

Terraforming Mars - Colonies Events

No announcements yet · from Terraforming Mars - Colonies’s Steam news feed

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This developer has not posted announcements to Steam, or we have not read their feed yet.

Announcements are the developer’s own posts to the game’s Steam news feed: updates and their patch notes, in-game events, releases and sales. The important ones are marked on the players chart.