Single-player games like Merge Mutants
Below are 8 single-player Steam games similar to Merge Mutants, 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 Merge Mutants page.
Ranked picks
- 1
WARLANCER - Armored Survivor
Single-player alternative to Merge Mutants — playable solo, no multiplayer required. Shares Action with Merge Mutants.
WARLANCER - Armored Survivor is a top down survivor shooter where you employ weapons within weapons to decimate hordes of enemies with multiple waves of firepower. Configure your mech with upgrades and randomly generated weapons to survive the relentless tide of alien invaders.
- 2
Approaching Infinity Survivors
Single-player alternative to Merge Mutants — playable solo, no multiplayer required. Shares Action and Indie with Merge Mutants.
A Bullet-Heaven roguelike in the Approaching Infinity universe with both spaceship and away team missions. The exit of the galaxy's dominant races left a power vacuum that everyone wants to fill. Survive, pick a side, or kill'em all. No time to think when the horde's advancing.
- 3
Space Show edition 17
Single-player alternative to Merge Mutants — playable solo, no multiplayer required. Shares Action and Indie with Merge Mutants.
Space Show is an explosive space shoot’em up blending fast-paced arcade action with roguelite progression. Destroy waves of asteroids, battle enemy fleets, and defend Earth in an endless war where only survival… and glory matter!
- 4
Shapes: The Tower Defense Game
Single-player alternative to Merge Mutants — playable solo, no multiplayer required. Shares Action with Merge Mutants.
Strategize your base to build and defend off waves of enemies in an on going battle. Plan, Attack, Defend and Grow! In the stratigic tower defense shooter.
- 5
Diced Up!
Single-player alternative to Merge Mutants — playable solo, no multiplayer required. Shares Action and Indie with Merge Mutants.
Survive as long as you can in an endless bullet hell with randomized stats and weapons.
- 6
Farmnana Defence
Single-player alternative to Merge Mutants — playable solo, no multiplayer required. Shares Action and Indie with Merge Mutants.
▎ Defend your farm with magical bananas! Collect and enhance 20+ bananas across 5 tiers, build your farm by day, and survive monster waves by night. Face 5 epic bosses in 25 waves and endless Infinite Mode.
- 7
UNLOAD
Single-player alternative to Merge Mutants — playable solo, no multiplayer required. Shares Action and Indie with Merge Mutants.
UNLOAD is an intercept-focused top-down shooter where ammo is life. Intercept lethal barrages to reload and survive by a thread. As a Visitor who lost everything in an explosion, hunt down those tied to the incident and uncover the truth behind that day.
- 8
Planetary Defense: An Orbital Turret Defense System
Single-player alternative to Merge Mutants — playable solo, no multiplayer required. Shares Action and Indie with Merge Mutants.
2D space shooter and turret defense come together to create the Planetary Defense System this world needs! Shoot down asteroids and aliens and survive the bosses in this arcade like game featuring customizable satellites, projectiles, and upgradable Cannon and Planet Shield systems.