Single-player games like Interstellar Impact
Below are 8 single-player Steam games similar to Interstellar Impact, 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 Impact page.
Ranked picks
- 1
Osmos
Single-player alternative to Interstellar Impact — playable solo, no multiplayer required. Shares Casual with Interstellar Impact.
Enter the ambient world of Osmos: elegant, physics-based gameplay, dreamlike visuals, and a minimalist, electronic soundtrack. Your objective is to grow by absorbing other motes. Propel yourself by ejecting matter behind you. But be wise: ejecting matter also shrinks you. Relax - good things come to those who wait.
- 2
Star Fisher
Single-player alternative to Interstellar Impact — playable solo, no multiplayer required. Shares Action and Adventure with Interstellar Impact.
Star Fisher is a top down action fishing game with procedurally generated levels and a simple story to keep you hooked. Dodge monsters and rocks, swing your net, and catch fish to keep your run going and feed your cat!
- 3
Pachinko Life
Single-player alternative to Interstellar Impact — playable solo, no multiplayer required. Shares Strategy and Casual with Interstellar Impact.
a pachinko roguelike where every run is a life. every country, class, and choice changes how the board plays.
- 4
Inspiral: Echoes of Gravity
Single-player alternative to Interstellar Impact — playable solo, no multiplayer required. Shares Strategy and Casual with Interstellar Impact.
Start as an asteroid, grow by absorbing other celestial bodies to become a planet, a star, and ultimately a black hole. Experience realistic gravity and orbital physics in an ever-evolving sandbox universe.
- 5
Space War: Infinity
Single-player alternative to Interstellar Impact — playable solo, no multiplayer required. Shares Action and Casual with Interstellar Impact.
Vertical semi-procedural shmup with upgrades, real-time enemy waves, and infinite replayability. Level up your ship, unlock 20+ weapons, defeat 5 bosses, and survive endless bullet-hell combat.
- 6
Space Balls
Single-player alternative to Interstellar Impact — playable solo, no multiplayer required. Shares Casual with Interstellar Impact.
Shoot yourself into space as high as you can in this arcade game with a retro soundtrack!
- 7
EARTH SAVER
Single-player alternative to Interstellar Impact — playable solo, no multiplayer required. Shares Action and Strategy with Interstellar Impact.
"Earth Saver" is an exhilarating action game in which you blow up and dismantle a giant meteorite approaching the Earth! If you successfully split it, the meteorite will burn up in the atmosphere and the Earth will be safe! Connect and blow it up, split it neatly, and feel the maximum exhilaration!
- 8
Starforged Legacy
Single-player alternative to Interstellar Impact — playable solo, no multiplayer required. Shares Action and Strategy with Interstellar Impact.
Outlast the onslaught in a sci-fi survivors-like where your decisions matter as much as your firepower. Command customizable starships, enhance your arsenal with 100+ strategy-defining upgrades, and annihilate endless fleets of cosmic combatants! Carve your legacy among the stars or die trying!