Is ProtoGalaxy multiplayer or co-op?
Yes — co-op, plus local/split-screen. ProtoGalaxy is an action-adventure game released in 2010, 62% positive on Steam (65 reviews), with 2 playing right now. Free on Steam.
Co-opLocal / split-screenSingle-player tooAction-adventure · Action-adventure
Earth is under siege! A mysterious and powerful alien race has come to enslave the entire galaxy, and your…
How ProtoGalaxy plays with friends, according to Steam
- Online co-op
- Not listed on Steam
- Local / split-screen co-op
- Not listed on Steam
- 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
- Shared / split screen
- Yes
- Controller
- Partial 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: Indie, Action, Co-op
Do you and a friend both own ProtoGalaxy?
Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether ProtoGalaxy 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 ProtoGalaxy co-op?
- Yes, ProtoGalaxy supports co-op.
- Does ProtoGalaxy have PvP?
- Steam does not list PvP for ProtoGalaxy.
- Do we both need to own ProtoGalaxy to play together?
- Not always. ProtoGalaxy 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 ProtoGalaxy?
- About 2 players were in-game when this page's data was last refreshed (2026-09-09).
- Does ProtoGalaxy have split-screen or local multiplayer?
- Yes. Steam lists ProtoGalaxy with shared/split-screen play on one PC — and it supports Remote Play Together, so a friend can join that local session over the internet.