31 tactical & milsim 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.
Which of these do we both own? →
| Game | Modes | Type | Rating | Playing now | Price |
|---|---|---|---|---|---|
| Tom Clancy's Rainbow Six Siege | Co-op, PvP | Tactical & milsim | 84% | 51,847 | Free |
| Arma Reforger | Co-op, PvP | Tactical & milsim | 76% | 11,466 | $27.99 |
| Squad | Co-op, PvP | Tactical & milsim | 83% | 9,116 | $39.99 |
| Arma 3 | Co-op, PvP | Tactical & milsim | 90% | 7,181 | $29.99 |
| Ready or Not | Co-op, Single-player too | Tactical & milsim | 89% | 4,296 | $49.99 |
| Hell Let Loose | PvP | Tactical & milsim | 82% | 3,380 | $49.99 |
| Enlisted | Co-op, PvP | Tactical & milsim | 80% | 2,569 | Free |
| Insurgency: Sandstorm | Co-op, PvP | Tactical & milsim | 85% | 1,826 | $5.99 |
| Battlefield 4™ | PvP, Single-player too | Tactical & milsim | 85% | 1,153 | $39.99 |
| BattleBit Remastered | PvP | Tactical & milsim | 84% | 568 | $14.99 |
| Call of Duty®: Modern Warfare® | Co-op, PvP | Tactical & milsim | 79% | 847 | $14.99 |
| Insurgency | Co-op | Tactical & milsim | 92% | 154 | $14.99 |
| Bodycam | PvP | Tactical & milsim | 75% | 422 | $26.65 |
| GROUND BRANCH | Co-op, PvP | Tactical & milsim | 89% | 349 | $23.99 |
| Day of Defeat: Source | Online multiplayer | Tactical & milsim | 92% | 238 | $9.99 |
| World War 3 | PvP | Tactical & milsim | 54% | 59 | Free |
| POLYGON | Co-op, PvP | Tactical & milsim | 75% | 119 | Free |
| Red Orchestra 2: Heroes of Stalingrad with Rising Storm | PvP | Tactical & milsim | 92% | 92 | $19.99 |
| Zero Hour | Co-op, PvP | Tactical & milsim | 79% | 75 | $9.99 |
| Six Days in Fallujah | Co-op, Single-player too | Tactical & milsim | 82% | 143 | $23.99 |
| SCP: 5K | Co-op, PvP | Tactical & milsim | 80% | 131 | $19.99 |
| Day of Infamy | Co-op, PvP | Tactical & milsim | 82% | 17 | $14.99 |
| Onward | Co-op, PvP | Tactical & milsim | 69% | 30 | $24.99 |
| Medal of Honor™ | Online multiplayer, Single-player too | Tactical & milsim | 76% | 24 | $19.99 |
| Arma: Cold War Assault Remastered | Co-op, PvP | Tactical & milsim | 80% | 10 | $4.99 |
| Interstellar Marines | Co-op, Single-player too | Tactical & milsim | 54% | 1 | $9.99 |
| Tactical Assault VR | Co-op, PvP | Tactical & milsim | 90% | 21 | $19.99 |
| Zero Caliber VR | Co-op, PvP | Tactical & milsim | 77% | 5 | $24.99 |
| Medal of Honor™ | Online multiplayer, Single-player too | Tactical & milsim | 71% | 1 | $19.99 |
| ARMA: Gold Edition | Online multiplayer, Single-player too | Tactical & milsim | 76% | 6 | $1.99 |
| Operation Flashpoint: Red River | Co-op, Single-player too | Tactical & milsim | 52% | 1 |
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.