How many people are playing Terraforming Mars right now?

Terraforming Mars has 514 players on Steam right now, with a 24-hour peak of 540 and an all-time peak of 1,645 on Feb 2021.

What is the all-time peak player count of Terraforming Mars?

1,645 concurrent players on Feb 2021.

When was Terraforming Mars released on Steam?

Terraforming Mars was released on Steam on 17 Oct 2018.

Status

SteamPeaks

Terraforming Mars

GameApp ID 800,270by Artefacts StudioReleased 17 Oct 2018

Windows · macOSEngine —

App ID800,270

Release date17 Oct 2018

Engine—

Install size993 MB

TypeGame

Last update9 Jun 2026

Steam DeckVerified

DLC6

DeveloperArtefacts Studio

Changenumber37,437,721

Price$19.99

Packages0

PublisherTwin Sails Interactive

SystemsWindows · macOS

Followers—

Depots2

Compare this game

Terraforming Mars

Artefacts Studio·Twin Sails Interactive
Released 17 Oct 2018·App 800270

Steam user reviews

Mostly Positive

70.6%· 7.2K reviews

Recent Very Positive · 81%

SteamPeaks Rating

70.2 Positive

Recent 30 days 57.0

How it works

Playing now

514

−5 vs. yesterday

31%of peak

All-time peak

Full details

Everything about Terraforming Mars

Export CSVUpdated 5 Sep 2026, 20:34 UTC

Identity

Name

Terraforming Mars

App ID

800,270

Type

Game

Developer

Artefacts Studio

Publisher

Twin Sails Interactive

Franchise

—

Availability

Release date

17 Oct 2018

Last update

9 Jun 2026, 12:13 UTC · 3 months ago

Last changenumber

37,437,721

Early Access

Family sharing

Eligible

Store page

Yes

Prices

Terraforming Mars Full Details · SteamPeaks