8 sci-fi survival games on Steam with co-op or multiplayer, ranked by how many people are playing right now and how well they review. Part of Survival.
Which of these do we both own? →
| Game | Modes | Type | Rating | Playing now | Price |
|---|---|---|---|---|---|
| No Man's Sky | Co-op, PvP | Sci-fi survival | 83% | 12,291 | $59.99 |
| Space Engineers | Co-op, PvP | Sci-fi survival | 89% | 4,201 | $19.99 |
| Subnautica | Co-op, Single-player too | Sci-fi survival | 97% | 2,719 | $7.49 |
| Starbound | Co-op, PvP | Sci-fi survival | 92% | 894 | $7.49 |
| ASTRONEER | Co-op, Single-player too | Sci-fi survival | 92% | 988 | $7.49 |
| Subnautica: Below Zero | Co-op, Single-player too | Sci-fi survival | 91% | 698 | $7.49 |
| STARSEEKER: Astroneer Expeditions | Co-op | Sci-fi survival | — | — | $23.99 |
| Subnautica 2 | Co-op, Single-player too | Sci-fi survival | — | — | $29.99 |
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; updated 2026-09-08. Powered by Steam — not affiliated with or endorsed by Valve Corporation.