Single-player games like RATMOUSE
Below are 10 single-player Steam games similar to RATMOUSE, 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 RATMOUSE page.
Ranked picks
- 1
Skull Head World
Single-player alternative to RATMOUSE — playable solo, no multiplayer required. Shares Action and Indie with RATMOUSE.
defend skullheadworld. shoot skulls at invading skulls. collect skulls to protect your skull. flush skulls to upgrade. part single-stick bullet-hell shooter, part top-down physics brawler. super addictive arcade fun.
- 2
Cactiverse
Single-player alternative to RATMOUSE — playable solo, no multiplayer required. Shares Simulation and Free To Play with RATMOUSE.
The world of Cactiverse, where gardening meets dragon-fueled fun! Grow your cacti, unleash waterballs, and join a vibrant community on Discord. With weekly tournaments and hilarious gameplay, Cactiverse is your next obsession. Fun, challenging, and social—what more could you ask for?
- 3
Phrenetic Shooting Reunion
Single-player alternative to RATMOUSE — playable solo, no multiplayer required. Shares Action and Indie with RATMOUSE.
[CONTENTS] A playable shooting game "PHRENETIC SHOOTING REUNION" + All future updates/bug fixes. Phrenetic Shooting is a retro tasted shooting game. This game provides an exciting experience for retro 2D shooting game funs.
- 4
Incremental Space Defense Force League
Single-player alternative to RATMOUSE — playable solo, no multiplayer required. Shares Action and Indie with RATMOUSE.
Pilot an A.C.E combat craft in a incremental retro styled sci-fi shoot 'em up where every run earns data shards, unlocks upgrades via 7 skill trees, fight bosses, conquer 100 prestige levels and push deeper into a war against the Worms invading the colony.
- 5
Roidgrinder
Single-player alternative to RATMOUSE — playable solo, no multiplayer required. Shares Action and Indie with RATMOUSE.
The origin story of a famous roidgrinder. It's an incremental space mining game where you interact with the ship's systems through a state-of-the-art terminal interface. Crossbreed of 2D arcade, lightweight simulation and some idler elements. Note: KEYBOARD REQUIRED.
- 6
Trapper
Single-player alternative to RATMOUSE — playable solo, no multiplayer required. Shares Action and Indie with RATMOUSE.
An animal-catching game made both for and against the hardcore collectors.
- 7
Incraiders
Single-player alternative to RATMOUSE — playable solo, no multiplayer required. Shares Action and Indie with RATMOUSE.
Incraiders is an active incremental game where you get energy from fallen Invaders to become a cross-dimensional guardian of the cosmos.
- 8
walk
Single-player alternative to RATMOUSE — playable solo, no multiplayer required. Shares Indie and Simulation with RATMOUSE.
it's about walking
- 9
FOREMAN FRENZY!
Single-player alternative to RATMOUSE — playable solo, no multiplayer required. Shares Action and Indie with RATMOUSE.
Arcade Styled 2D Platformer, RUN, CLIMB, DODGE, and BOUNCE your way through 9 challenging and tense rounds, fetch your crew's 5 fallen lunches before time runs out, and whatever you do, STEER CLEAR of the mutant food dudes lurking around every corner!
- 10
PCpill
Single-player alternative to RATMOUSE — playable solo, no multiplayer required. Shares Action with RATMOUSE.
PCpill™ is an action-packed top-down shooter where you take control of the PCpill™ Antivirus to disinfect the hard drive of an old desktop PC. Use your PillGun to blast the rot away and restore your computer, one file at a time!