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
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!
- 2
Cosmic Dust & Rust
Single-player alternative to Sentinel 3: Homeworld — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 3: Homeworld.
Cosmic Dust & Rust is a tower defence game set in space. Upgrade your ship, build turrets and defence systems, undergo side missions and take control of your ship manually and use its cannons and super weapons to destroy your enemies.
- 3
Infested Planet
Single-player alternative to Sentinel 3: Homeworld — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 3: Homeworld.
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.
- 4
Sanctum
Single-player alternative to Sentinel 3: Homeworld — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 3: Homeworld.
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.
- 5
Bloons TD 5
Single-player alternative to Sentinel 3: Homeworld — playable solo, no multiplayer required. Shares Strategy with Sentinel 3: Homeworld.
Five-star tower defense with unrivaled depth and replayability. The Bloons are back in full HD glory and this time they mean business! Build awesome towers, choose your favorite upgrades, hire new Special Agents, and pop every last invading Bloon in the most popular tower defense series in history.
- 6
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.
- 7
Evil Defenders
Single-player alternative to Sentinel 3: Homeworld — playable solo, no multiplayer required. Shares Strategy and Indie with Sentinel 3: Homeworld.
Evil Defenders is a fun, frenetic defense game: build and upgrade your towers, сast spells to repel enemy forces, use special landmarks and defend the Lands of Evil from invaders! Feel free to play the game in many different ways through unique tower upgrades, a deep skill tree and 100 in-game achievements.
- 8
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.