Single-player games like Antithesis
Below are 8 single-player Steam games similar to Antithesis, 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 Antithesis page.
Ranked picks
- 1
Space Defense
Single-player alternative to Antithesis — playable solo, no multiplayer required. Shares Action and Indie with Antithesis.
You and your space troop have a tough mission to defend Earth from an alien invasion in this epic space war. Will you be able to guide your troops to victory?
- 2
Ostallian Core
Single-player alternative to Antithesis — playable solo, no multiplayer required. Shares Action and Indie with Antithesis.
A modern omnidirectional space shooter with colorful retro-style ASCII art and light RPG elements, featuring optional permadeath.
- 3
Space Carrier Zero
Single-player alternative to Antithesis — playable solo, no multiplayer required. Shares Action with Antithesis.
One carrier against the sector's whole navy. The guns fire themselves, you steer the bow, pick the route, and decide how long to stay before the alarm brings the fleet down on you. Collect permanent cards that increase your strength each run. Five acts with increasing battle scope.
- 4
Stel
Single-player alternative to Antithesis — playable solo, no multiplayer required. Shares Action and Indie with Antithesis.
Stel is a spaceship action-adventure game with procedurally generated elements. Fight dangerous foes, improve your ship and explore the different levels to decipher a mysterious problem, the Quantum are disappearing...
- 5
I Made Myself a Ship
Single-player alternative to Antithesis — playable solo, no multiplayer required. Shares Action and Indie with Antithesis.
Zip and zoom as you zap enemies and steal their stuff. Build progressively bigger, faster, tankier, more agile, more dangerous, more complicated, more projectile-y-ier ships in your goal to destroy and collect everything.
- 6
REVO
Single-player alternative to Antithesis — playable solo, no multiplayer required. Shares Action and Indie with Antithesis.
Dodge and shoot your way through waves of enemies. REVO is a high speed, neon drenched space shoot ‘em up inspired by arcade classics of the 1980’s. Collect pickups, unlock powerful, ammo hungry weapons, and defeat giant bosses.
- 7
Salt VS Pepper
Single-player alternative to Antithesis — playable solo, no multiplayer required. Shares Action and Indie with Antithesis.
Salt VS Pepper is a twin-stick shooter where you switch between black and white every 3 seconds, leaving behind an evil clone every time you switch! Use guns, walls, bowling balls, and anything in between as a weapon!
- 8
Time Survivor
Single-player alternative to Antithesis — playable solo, no multiplayer required. Shares Action and Indie with Antithesis.
Action Incremental. Survive against Time while your life energy progressively drains away. Dodge attacks, collect resources and power up your progression through an expansive skill tree, upgrading your stats and unlocking powerful abilities. How long can you last when death is one heartbeat away?