Single-player games like Mutant Fish
Below are 8 single-player Steam games similar to Mutant Fish, 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 Mutant Fish page.
Ranked picks
- 1
MESO
Single-player alternative to Mutant Fish — playable solo, no multiplayer required. Shares Indie and Casual with Mutant Fish.
Meso is a fast-paced exploration-action game with arcade feel and a unique underwater movement. Enter the microcosmic world of puddles and save the ecosystem. Fight against the algae plague and the mysterious invaders. Collect energy, dodge your enemies and master the unique underwater movement.
- 2
Fish. Love. Danger.
Single-player alternative to Mutant Fish — playable solo, no multiplayer required. Shares Indie and Casual with Mutant Fish.
A cute HARDCORE arcade game about a fish in love.
- 3
Down the Drain
Single-player alternative to Mutant Fish — playable solo, no multiplayer required. Shares Indie and Casual with Mutant Fish.
Take a trip below the sink with Marta in this top-down 2D shooter through randomly generated mazes of pipes. Defeat gooey enemies, overcome strong bosses, and learn what's really going on when trouble starts brewing beneath our tubs and under our streets.
- 4
MQ: Rise Above
Single-player alternative to Mutant Fish — playable solo, no multiplayer required. Shares Indie with Mutant Fish.
Reach the heavens or burn in the abyss! In this intense physics survival, build your path out of a crumbling world. Dodge lightning and hurricanes, defeat epic bosses, and level up your hero. With wings, pets, and multiplayer, customize your legend and conquer the ultimate ascent!
- 5
Dualism
Single-player alternative to Mutant Fish — playable solo, no multiplayer required. Shares Indie and Early Access with Mutant Fish.
Intense arcade shoot 'em up / bullet hell with twin-stick controls, roguelite upgrades, and a white & black twist where opposites damage and similars heal. An addicting, challenging, and relentless experience where you must control light and dark to succeed.
- 6
CrabbleUp
Single-player alternative to Mutant Fish — playable solo, no multiplayer required. Shares Indie and Casual with Mutant Fish.
Dive into an oceanic odyssey, where serene exploration meets thrilling challenges. Embark on a journey through endless underwater mazes, armed only with your cunning and defending yourself from perilous foes with the power of your bubbles.
- 7
小拉奇境：漫画历险记
Single-player alternative to Mutant Fish — playable solo, no multiplayer required. Shares Indie and Casual with Mutant Fish.
- 8
Mercenaries of the Kingdom: First Blood
Single-player alternative to Mutant Fish — playable solo, no multiplayer required. Shares Indie with Mutant Fish.
Party-based rogue-lite RPG set in Earthial, a fantasy world. Hire various races of mercenaries, equip them, create battle formations, and grab the loot! Kill tens of thousands of enemies using steel and spells!