Single-player games like Interstellar Sentinel
Below are 8 single-player Steam games similar to Interstellar Sentinel, 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 Interstellar Sentinel page.
Ranked picks
- 1
Shoot Star
Single-player alternative to Interstellar Sentinel — playable solo, no multiplayer required. Shares Action and Indie with Interstellar Sentinel.
Enjoy boss battles in a cartoon world! "ShootStar" is a 2D shooting action boss battle game.
- 2
A2 Zygon
Single-player alternative to Interstellar Sentinel — playable solo, no multiplayer required. Shares Action and Indie with Interstellar Sentinel.
A bullet hell with its own set of mechanics and unique bosses. Gameplay oriented and retro themed. Complete with spine-tingling music.
- 3
Dire Vengeance
Single-player alternative to Interstellar Sentinel — playable solo, no multiplayer required. Shares Action and Indie with Interstellar Sentinel.
Pandora ventures into the Dark Realm to slay the demons who threaten her world. Collect Soul Orbs to upgrade your abilities and uncover arcane weaponry. Slash your way through frozen wastelands, lava filled chambers, and caverns of putrefying flesh as you slaughter hordes of condemned monstrosities.
- 4
RAMMBOCK
Single-player alternative to Interstellar Sentinel — playable solo, no multiplayer required. Shares Action and Indie with Interstellar Sentinel.
Dodge bullets or plow right through with the RAMMBOCK. Utilize the hybrid technology of the twin moons! Ramm enemies into one another for chain bonuses. Tackle missions and increase your score to uncover the truth about your past.
- 5
Skyfire Embers
Single-player alternative to Interstellar Sentinel — playable solo, no multiplayer required. Shares Action and Indie with Interstellar Sentinel.
Skyfire embers is an explosive dragon adventure seeking its final resolution. Dodge, weave and fire your way through challenging bullet patterns in this hand-animated shoot ‘em up!
- 6
Hellfish
Single-player alternative to Interstellar Sentinel — playable solo, no multiplayer required. Shares Action and Indie with Interstellar Sentinel.
Hellfish is a classic side-scrolling shoot 'em up set deep in a corrupted ocean. Battle demonic sea creatures as The Pope using his holy submarine, and customize your righteous weapons in unique ways every time you play.
- 7
Folclore Xamin
Single-player alternative to Interstellar Sentinel — playable solo, no multiplayer required. Shares Action and Indie with Interstellar Sentinel.
Folclore Xamin is an intense 2D action platformer and run-and-gun game. Featuring beautiful hand-drawn animations, you control the Xamin twins who wield the power of nature. Master shooting, jumping, and dashing to defeat forest spirits and conquer the Amazon!
- 8
Ghosts 'n Goblins Resurrection
Single-player alternative to Interstellar Sentinel — playable solo, no multiplayer required. Shares Action with Interstellar Sentinel.
Watch as this nostalgic yet completely reimagined storybook world unravels before your very eyes. Taking cues from both Ghosts 'n Goblins and Ghouls 'n Ghosts and giving birth to something entirely new, Resurrection is a title worthy of its name.