Is Terraforming Mars multiplayer or co-op?
Yes — PvP, plus local/split-screen. Terraforming Mars is a cards & tabletop game released in 2018, 72% positive on Steam (6,629 reviews), with 361 playing right now. $19.99 on Steam.
PvPLocal / split-screenSingle-player tooCards & tabletop · Cards & tabletop
The taming of the Red Planet has begun! Corporations are competing to transform Mars into a habitable planet by spending vast resources and using innovative…
How Terraforming Mars plays with friends, according to Steam
- Online co-op
- Not listed on Steam
- Local / split-screen co-op
- Not listed on Steam
- Online PvP
- Yes
- Local / split-screen PvP
- Yes
- LAN play
- Not listed on Steam
- Remote Play Together (one copy, streamed to friends)
- Yes
- Single-player mode
- 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: Strategy, Board Game, Space, Tabletop, Turn-Based, Mars, Multiplayer, Sci-fi
Do you and a friend both own Terraforming Mars?
Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Terraforming Mars 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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Quick answers
- Is Terraforming Mars co-op?
- Terraforming Mars does not list co-op on Steam; it has PvP, Local / split-screen, Single-player too.
- Does Terraforming Mars have PvP?
- Yes, Terraforming Mars has player-versus-player modes.
- Do we both need to own Terraforming Mars to play together?
- Not always. Terraforming Mars supports Steam Remote Play Together: one person who owns it hosts and streams a local session to friends who don't (Steam quotes up to four players, more on a fast connection). For online co-op or PvP, every player needs their own copy.
- How many people play Terraforming Mars?
- About 361 players were in-game when this page's data was last refreshed (2026-09-09).
- Does Terraforming Mars have split-screen or local multiplayer?
- Yes. Steam lists Terraforming Mars with shared/split-screen PvP on one PC — and it supports Remote Play Together, so a friend can join that local session over the internet.