1 retro & arcade games on Steam with co-op or multiplayer, ranked by how many people are playing right now and how well they review. Part of Party & co-op.
| Game | Modes | Type | Rating | Playing now | Price |
|---|---|---|---|---|---|
| Really Big Sky | Online multiplayer, Local / split-screen | Retro & arcade | 75% | — | $1.24 |
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