Is 39 Days to Mars co-op?

Yes, 39 Days to Mars supports co-op.

Does 39 Days to Mars have PvP?

Steam does not list PvP for 39 Days to Mars.

Do we both need to own 39 Days to Mars to play together?

Not always. 39 Days to 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 39 Days to Mars?

Player counts were not available when this page was built.

Does 39 Days to Mars have split-screen or local multiplayer?

Yes. Steam lists 39 Days to Mars with shared/split-screen co-op on one PC — and it supports Remote Play Together, so a friend can join that local session over the internet.

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

Multiplayer games › Party & co-op › Co-op puzzle & chaos

Is 39 Days to Mars multiplayer or co-op?

Yes — co-op, plus local/split-screen. 39 Days to Mars is a co-op puzzle & chaos game released in 2018, 86% positive on Steam (313 reviews). $19.99 on Steam.

Co-opLocal / split-screenSingle-player tooParty & co-op · Co-op puzzle & chaos

Embark on the 19th century's most unreliable spaceship in this 2 player couch co-op adventure. 39 Days to…

How 39 Days to Mars plays with friends, according to Steam

Online co-op: Not listed on Steam
Local / split-screen co-op: Yes
Online PvP: Not listed on Steam
LAN play: Not listed on Steam
Remote Play Together (one copy, streamed to friends): Yes
Single-player mode: Yes
Controller: Full controller support

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: Co-op, Adventure, Puzzle, Multiplayer, Local Co-Op, Local Multiplayer, Co-op Campaign, Singleplayer

Do you and a friend both own 39 Days to Mars?

Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether 39 Days to 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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Escape Simulator

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Overcooked! All You Can Eat

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Tired of 39 Days to Mars? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.

Quick answers

Is 39 Days to Mars co-op?: Yes, 39 Days to Mars supports co-op.
Does 39 Days to Mars have PvP?: Steam does not list PvP for 39 Days to Mars.
Do we both need to own 39 Days to Mars to play together?: Not always. 39 Days to 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 39 Days to Mars?: Player counts were not available when this page was built.
Does 39 Days to Mars have split-screen or local multiplayer?: Yes. Steam lists 39 Days to Mars with shared/split-screen co-op on one PC — and it supports Remote Play Together, so a friend can join that local session over the internet.

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