Single-player games like Universe X
Below are 8 single-player Steam games similar to Universe X, 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 Universe X page.
Ranked picks
- 1
Get Off My Space!
Single-player alternative to Universe X — playable solo, no multiplayer required. Shares Action and Strategy with Universe X.
Get Off My Space! is a tower defense game where you rely on skillful tower placement and resource management to beat upcoming dangers of the galaxy. Combining strategy and micro-managing fire groups, you will overcome the hardest level objectives.
- 2
Starcom: Unknown Space
Single-player alternative to Universe X — playable solo, no multiplayer required. Shares Action and Adventure with Universe X.
Starcom: Unknown Space is an action RPG of space exploration and adventure. Build your own starship while discovering an epic story in a universe of strange mysteries, alien factions and uncharted worlds.
- 3
Silent Sector
Single-player alternative to Universe X — playable solo, no multiplayer required. Shares Action and Simulation with Universe X.
Oldschool action open-world sci-fi with a unique storyline, frenetic battles, crude humor, loose morals and cows.
- 4
PewPew!
Single-player alternative to Universe X — playable solo, no multiplayer required. Shares Action and Simulation with Universe X.
PewPew! - move, shoot and upgrade!
- 5
Nanoplanet Survivors
Single-player alternative to Universe X — playable solo, no multiplayer required. Shares Action and Adventure with Universe X.
Nanoplanet Survivors is a heart-pounding bullet hell survival game set on a hostile planet. Battle relentless waves of alien foes and adapt with powerful upgrades and unique character abilities. Epic boss fights make every playthrough a thrilling challenge. Can you emerge as the ultimate survivor?
- 6
Spaceship Simulator
Single-player alternative to Universe X — playable solo, no multiplayer required. Shares Simulation and Casual with Universe X.
Design your own spacecraft with captured components in an unknown galaxy to defeat strange space creatures and finally escape from the galaxy.
- 7
SHINORUBI
Single-player alternative to Universe X — playable solo, no multiplayer required. Shares Action with Universe X.
Inspired by classic Japanese shooting games, SHINORUBI is a pure dose of adrenaline and frenetic arcade action with all the best aspects of Japanese bullet hell games, optimized for modern PC in ultra HD, all in a polished, accessible with many levels of difficulties.
- 8
Detective Gman
Single-player alternative to Universe X — playable solo, no multiplayer required. Shares Action and Strategy with Universe X.
Detective simulation. Top down open world exploration.