71 sci-fi shooter games on Steam with co-op or multiplayer, ranked by how many people are playing right now and how well they review. Part of Shooter.
| Game | Modes | Type | Rating | Playing now | Price |
|---|---|---|---|---|---|
| STAR WARS™ Battlefront™ II | PvP, Single-player too | Sci-fi shooter | 88% | 9,213 | $39.99 |
| Halo: The Master Chief Collection | Co-op, PvP | Sci-fi shooter | 92% | 3,362 | $39.99 |
| Halo Infinite | PvP | Sci-fi shooter | 70% | 2,275 | Free |
| Half-Life 2 | Co-op, Single-player too | Sci-fi shooter | 98% | 1,555 | $9.99 |
| Black Mesa | PvP, Single-player too | Sci-fi shooter | 95% | 907 | $19.99 |
| Half-Life | PvP, Single-player too | Sci-fi shooter | 97% | 634 | $9.99 |
| STAR WARS™ Battlefront II (Classic, 2005) | PvP, Single-player too | Sci-fi shooter | 95% | 323 | $9.99 |
| Call of Duty®: Infinite Warfare | Co-op, PvP | Sci-fi shooter | 60% | 326 | $14.99 |
| Warhammer 40,000: Space Marine - Anniversary Edition | Online multiplayer, Single-player too | Sci-fi shooter | 92% | 95 | $39.99 |
| Half-Life 2: Deathmatch | Online multiplayer | Sci-fi shooter | 91% | 159 | |
| Half-Life 2: Episode Two | Co-op, Single-player too | Sci-fi shooter | 97% | 20 | |
| Half-Life: Opposing Force | Online multiplayer, Single-player too | Sci-fi shooter | 95% | 74 | $4.99 |
| Half-Life 2: Episode One | Co-op, Single-player too | Sci-fi shooter | 96% | 18 | |
| DOOM 3 | Online multiplayer, Single-player too | Sci-fi shooter | 86% | 118 | $9.99 |
| DOOM 3 | Online multiplayer, Single-player too | Sci-fi shooter | 89% | 49 | |
| STAR WARS™ Battlefront | PvP, Single-player too | Sci-fi shooter | 78% | 55 | $19.99 |
| Boundary | PvP | Sci-fi shooter | 56% | — | |
| STAR WARS™ Battlefront (Classic, 2004) | PvP, Single-player too | Sci-fi shooter | 96% | 50 | $9.99 |
| STAR WARS™: Battlefront Classic Collection | Co-op, PvP | Sci-fi shooter | 23% | 33 | $26.25 |
| Half-Life Deathmatch: Source | Online multiplayer | Sci-fi shooter | 75% | 43 | $9.99 |
| STAR WARS™ Jedi Knight II - Jedi Outcast™ | PvP, Local / split-screen | Sci-fi shooter | 91% | 40 | $9.99 |
| Binary Domain | Co-op, Single-player too | Sci-fi shooter | 86% | 8 | $14.99 |
| Red Faction Guerrilla Re-Mars-tered | PvP, Single-player too | Sci-fi shooter | 80% | 20 | $19.99 |
| Singularity™ | Online multiplayer, Single-player too | Sci-fi shooter | 93% | 11 | $9.89 |
| Mass Effect™ 3 N7 Digital Deluxe Edition (2012) | Co-op, Single-player too | Sci-fi shooter | 75% | 24 | $29.99 |
| Quake 4 | Online multiplayer, Single-player too | Sci-fi shooter | 88% | 18 | $14.99 |
| Ricochet | PvP | Sci-fi shooter | 83% | 4 | $4.99 |
| Dreadnought | Co-op, PvP | Sci-fi shooter | 68% | — | |
| Red Faction®: Armageddon™ | Co-op, Single-player too | Sci-fi shooter | 73% | 6 | $19.99 |
| STAR WARS™ Jedi Knight: Dark Forces II | PvP, Local / split-screen | Sci-fi shooter | 80% | 14 | $5.99 |
| Aliens versus Predator Classic 2000 | Online multiplayer, Single-player too | Sci-fi shooter | 88% | 7 | $4.99 |
| Alien Rage - Unlimited | Online multiplayer, Single-player too | Sci-fi shooter | 68% | 1 | $19.99 |
| Overload | PvP, Single-player too | Sci-fi shooter | 94% | 8 | $29.99 |
| Red Faction | Online multiplayer, Single-player too | Sci-fi shooter | 86% | 4 | $9.99 |
| Angels Fall First | Co-op, PvP | Sci-fi shooter | 82% | 3 | $17.99 |
| DOOM 3 Resurrection of Evil | Online multiplayer, Single-player too | Sci-fi shooter | 84% | 14 | |
| Unreal Gold | Online multiplayer, Single-player too | Sci-fi shooter | 89% | 3 | |
| Shadowgrounds | Online multiplayer, Local / split-screen | Sci-fi shooter | 81% | 1 | $1.04 |
| TimeShift™ | Online multiplayer, Single-player too | Sci-fi shooter | 80% | 2 | $9.99 |
| Chaser | Online multiplayer, Single-player too | Sci-fi shooter | 70% | 2 | $4.99 |
| STAR WARS™ Jedi Knight - Mysteries of the Sith™ | Online multiplayer, Single-player too | Sci-fi shooter | 66% | 2 | $2.99 |
| Warhammer 40,000: Kill Team | Online multiplayer, Local / split-screen | Sci-fi shooter | 56% | — | |
| Capsized | Online multiplayer, Local / split-screen | Sci-fi shooter | 76% | — | $9.99 |
| Shadowgrounds Survivor | Online multiplayer, Local / split-screen | Sci-fi shooter | 61% | 1 | $0.99 |
| Aliens vs. Ghosts | Co-op, Single-player too | Sci-fi shooter | 91% | 2 | $7.49 |
| Prey: Typhon Hunter | PvP, Single-player too | Sci-fi shooter | 33% | — | $39.99 |
| PixelJunk™ Shooter | Online multiplayer, Local / split-screen | Sci-fi shooter | 90% | 1 | $0.98 |
| Enemy Mind | Online multiplayer, Local / split-screen | Sci-fi shooter | 85% | — | $9.99 |
| Inversion™ | Co-op, Single-player too | Sci-fi shooter | 62% | — | $1.49 |
| Shattered Horizon | Online multiplayer, Single-player too | Sci-fi shooter | 85% | — | |
| Rogue Trooper | Co-op, Single-player too | Sci-fi shooter | 95% | — | $9.99 |
| EVE: Valkyrie – Warzone | PvP | Sci-fi shooter | 56% | — | |
| AquaNox | Online multiplayer, Single-player too | Sci-fi shooter | 71% | — | $4.99 |
| Steel Storm: Burning Retribution | Co-op, Single-player too | Sci-fi shooter | 60% | — | $14.99 |
| E.T. Armies | Online multiplayer, Single-player too | Sci-fi shooter | 49% | — | $14.99 |
| Robonauts | Co-op, Local / split-screen | Sci-fi shooter | 61% | 1 | $3.99 |
| The Persistence | Co-op, Single-player too | Sci-fi shooter | 68% | — | $29.99 |
| Xenoraid: The First Space War | Co-op, Local / split-screen | Sci-fi shooter | 88% | — | $9.99 |
| Disputed Space | Co-op, PvP | Sci-fi shooter | 64% | — | $1.99 |
| Galactic Force | Co-op, PvP | Sci-fi shooter | 73% | — | $0.99 |
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; 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