Does M.A.R.S. have PvP?

Yes, M.A.R.S. has player-versus-player modes.

Do we both need to own M.A.R.S. to play together?

Yes. M.A.R.S. is played online, so each player needs their own copy on their own Steam account (or PC Game Pass where it is offered). Steam Families can share a library, but two people cannot play the same shared game at the same time.

How many people play M.A.R.S.?

About 30 players were in-game when this page's data was last refreshed (2026-09-09).

Ready Up — what game do we play?Compare two Steam libraries →

Multiplayer games › Vehicle combat › Mechs

Is M.A.R.S. multiplayer or co-op?

Yes — co-op and PvP. M.A.R.S. is a mechs game released in 2021, 63% positive on Steam (1,090 reviews), with 30 playing right now. Free on Steam.

Co-opPvPVehicle combat · Mechs

MARS is a Free-To-Play Third Person Shooter set in an evolving sci-fi world. From the hilarious Headhunter mode, to Huge Mecha vs Mecha battles, to fully…

How M.A.R.S. plays with friends, according to Steam

Online co-op: Yes
Local / split-screen co-op: Not listed on Steam
Online PvP: Yes
LAN play: Not listed on Steam
MMO: Yes

Steam's own category list for the game, as of 2026-09-09. "Not listed" means the store page does not claim that mode; community mods or Remote Play can still add it.

Steam tags: Third-Person Shooter, PvE, PvP, Competitive, Shooter, Character Customization, Female Protagonist, Third Person

Do you and a friend both own M.A.R.S.?

Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether M.A.R.S. is one of them — then helps you pick tonight's game with a weighted roll or a bracket.

Or open the Steam store page.

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Tired of M.A.R.S.? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.

Quick answers

Is M.A.R.S. co-op?: Yes, M.A.R.S. supports co-op.
Does M.A.R.S. have PvP?: Yes, M.A.R.S. has player-versus-player modes.
Do we both need to own M.A.R.S. to play together?: Yes. M.A.R.S. is played online, so each player needs their own copy on their own Steam account (or PC Game Pass where it is offered). Steam Families can share a library, but two people cannot play the same shared game at the same time.
How many people play M.A.R.S.?: About 30 players were in-game when this page's data was last refreshed (2026-09-09).

Ready Up is a free tool: enter two Steam usernames and it lists the multiplayer games you both own, runs a bracket to pick one, and suggests new co-op games that fit how you both play. Ratings, tags and player counts from Steam and SteamSpy; page updated 2026-09-23. Powered by Steam — not affiliated with or endorsed by Valve Corporation or Microsoft. Ready Up is a Somebody Decide program. How the data works · Legal & privacy · All types · Game Pass