How many people are playing M.A.R.S. right now?

M.A.R.S. has 33 players on Steam right now, with a 24-hour peak of 42 and an all-time peak of 802 on Jun 2021.

What is the all-time peak player count of M.A.R.S.?

802 concurrent players on Jun 2021.

When was M.A.R.S. released on Steam?

M.A.R.S. was released on Steam on 28 Oct 2021.

M.A.R.S. Install Size

Status

SteamPeaks

M.A.R.S. Install Size · SteamPeaks

Patch Ledger

Install size over time

Patch Ledger How this is computedComputed 3 hours ago

Install now

12.2 GBuncompressed

default install · build 21302271

Fresh download

6.84 GBcompressed

what a new default install fetches

Last change

—

first measured build

Builds measured

since 7 Sep 2026

Install size per public build · uncompressed bytes, 1 GB = 1,073,741,824 bytes · axis starts at the smallest measured build

One build measured so far; the line appears with the second.

Date · build	Install	Files	Install ±	Download	Efficiency	Note
24 Dec 2025build 21302271	12.2 GB	first read · 2,071 files	—	—	56% · downloaded 6.84 GB to change 12.2 GB	—

Measured from the 1 manifests the account has read, since it gained M.A.R.S. on 7 Sep 2026. Install bytes are the uncompressed file sizes of the default install (Windows, base game, English); depots behind DLC or keys, other languages and low-violence variants are counted apart and shown under every depot. Download and fresh-download bytes are compressed chunk lengths; the two are never added together. Efficiency is a patch’s download divided by the bytes it rewrote on disk. Export CSV · Data by SteamPeaks.com.

M.A.R.S.

Updates with no note

Install size over time

Shares files with