Single-player games like Sentinel 3: Homeworld
Below are 8 single-player Steam games similar to Sentinel 3: Homeworld, 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 3: Homeworld page.
Ranked picks
- 1
Sentinel 4: Dark Star
Single-player alternative to Sentinel 3: Homeworld — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 3: Homeworld.
Want a tactical and strategic tower defense challenge that's packed with options and upgrades? Take command of the dropship Sentinel and do battle across a vibrant sci-fi world.
- 2
Unstoppable Gorg
Single-player alternative to Sentinel 3: Homeworld — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 3: Homeworld.
Defend the solar system from fearsome aliens by sending satellites into orbit in revolutionary tower defense action!
- 3
Anomaly Defenders
Single-player alternative to Sentinel 3: Homeworld — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 3: Homeworld.
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.
- 4
Defense Grid: The Awakening
Single-player alternative to Sentinel 3: Homeworld — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 3: Homeworld.
Defense Grid: The Awakening is a unique spin on tower defense gameplay that will appeal to players of all skill levels. A horde of enemies is invading, and it's up to the player to stop them by strategically building fortification towers around their base.
- 5
Space Run
Single-player alternative to Sentinel 3: Homeworld — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 3: Homeworld.
Space Run is a «real-time spaceship construction strategy game». Space Run takes the well-known Tower Defense-style gameplay and twists it, challenging you to manage and protect a spaceship and its cargo against the hazards of deep space!
- 6
Super Sanctum TD
Single-player alternative to Sentinel 3: Homeworld — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 3: Homeworld.
Super Sanctum TD is a retro-styled Tower Defense game that focuses on strategy, customization and replayability. Build advanced mazes and construct powerful towers to prevent alien hordes from reaching the Core!
- 7
M.A.C.E. Tower Defense
Single-player alternative to Sentinel 3: Homeworld — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 3: Homeworld.
M.A.C.E. Tower Defense is a classic tower defense game with unique towers and enemies and an ingame shop system for getting better towers, upgrade existing towers and buy special items.
- 8
X-Morph: Defense
Single-player alternative to Sentinel 3: Homeworld — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 3: Homeworld.
Unique fusion of a top-down shooter and tower defense strategy. You are the invader! Use destructive weapons or lead your enemies into a maze of towers. Strategize in the build mode by carefully selecting various types of alien towers or throw yourself right into the heat of the battle.