Single-player games like Sentinel 4: Dark Star
Below are 13 single-player Steam games similar to Sentinel 4: Dark Star, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Sentinel 4: Dark Star page.
Ranked picks
- 1
Sol Survivor
Single-player alternative to Sentinel 4: Dark Star — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 4: Dark Star.
Jump in to intense turret defense action with Sol Survivor! Build turrets to defend your colony and the innocent colonists within. Smash enemies with volleys of actively-controlled orbital support. Play with friends in co-operative and competitive multiplayer matches or test your mettle against our new Survival mode!
- 2
Anomaly Defenders
Single-player alternative to Sentinel 4: Dark Star — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 4: Dark Star.
Anomaly Defenders is the closing installment of the Anomaly series. The original incarnation of the Tower Offense sub-genre had players controlling humans fighting alien invaders. Now, the tables have turned. The human counterattack is underway and the alien homeworld is under threat.
- 3
DG2: Defense Grid 2
Single-player alternative to Sentinel 4: Dark Star — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 4: Dark Star.
Great strategy is timeless. Build, adapt, and defend across dynamic maps, solo or online - every session brings new strategies, new solutions, and new surprises. Now is the perfect time to enter the grid.
- 4
Sanctum 2
Single-player alternative to Sentinel 4: Dark Star — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 4: Dark Star.
Sanctum 2 is the sequel to the world’s first Tower Defense/FPS hybrid game. Pick from four unique character classes and embark on a mission to protect the oxygen-producing Cores from hordes of deadly aliens who are threatened by their existence.
- 5
Infested Planet
Single-player alternative to Sentinel 4: Dark Star — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 4: Dark Star.
Command a team of 5 elite soldiers against an alien horde of 100,000. Surrounded on all sides, you must outmaneuver and outsmart the enemy.
- 6
Anomaly: Warzone Earth
Single-player alternative to Sentinel 4: Dark Star — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 4: Dark Star.
Lead an armored squad through the perils of this reversed tower defense action-strategy game!
- 7
Sanctum
Single-player alternative to Sentinel 4: Dark Star — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 4: Dark Star.
You think Tower Defense games are all about building? You thought wrong. Sanctum is not your average Tower Defense title. When the havoc starts, you get to join the fray! As one of the world’s first First Person Shooter - Tower Defense games, Sanctum has taken the best of both worlds to deliver an epic, one-of-a-kind experience.
- 8
Unstoppable Gorg
Single-player alternative to Sentinel 4: Dark Star — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 4: Dark Star.
Defend the solar system from fearsome aliens by sending satellites into orbit in revolutionary tower defense action!
- 9
Prime World: Defenders
Single-player alternative to Sentinel 4: Dark Star — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 4: Dark Star.
Fight off hordes of monstrous mutants created from a strange cataclysmic event in the new tower defense game, Prime World: Defenders. Join a group of exile treasure hunters who have ventured into the capital of an ancient empire, vast with mystery and danger.
- 10
Total Annihilation
Single-player alternative to Sentinel 4: Dark Star — playable solo, no multiplayer required. Shares Strategy with Sentinel 4: Dark Star.
What began as a conflict over the transfer of consciousness from flesh to machines escalated into a war which has decimated a million worlds. The Core and the Arm have all but exhausted the resources of a galaxy in their struggle for domination.
- 11
Sole Survivor: Stages of Death
Single-player alternative to Sentinel 4: Dark Star — playable solo, no multiplayer required.
The sole survivor stages of death are a whole new game; there are so many ways to kill yourself.
- 12
Sentinel 3: Homeworld
Single-player alternative to Sentinel 4: Dark Star — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 4: Dark Star.
The biggest installment of the award winning Sentinel sci-fi tower defense series now on PC!Take the fight to the alien homeworld and unleash a massive arsenal of weaponry. Get up close and personal on the battlefield in your power armor to execute devastating attacks and support your defenses! * An epic campaign across 20 levels.
- 13
Sentinel
Single-player alternative to Sentinel 4: Dark Star — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 4: Dark Star.
Sentinel is an interactive audio tower defense game. It mixes strategic gameplay with a dynamic music system.