Single-player games like I Am Fish
Below are 22 single-player Steam games similar to I Am 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 I Am Fish page.
Ranked picks
- 1
I Am Mouse
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Adventure and Simulation with I Am Fish.
Step into the paws of a tiny mouse in I Am Mouse, a charming third-person adventure where you create your own path. Fight, sneak, or explore freely through rich environments full of choices, secrets, and alternate routes.
- 2
Ascend the Dome
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Adventure and Simulation with I Am Fish.
A 3D rage-climbing game where you have to escape by scaling up different domes all the way to the top. Face all kinds of parkour challenges that’ll push your precision and skills to the limit! Connect your game to your Twitch chat!
- 3
Barely Breathing
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Adventure with I Am Fish.
Spill and splash away, make your own path! Go on an adventure in this 3D Platformer with fun physics interactions and smooth controls!
- 4
Are You Cereus?
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Adventure and Simulation with I Am Fish.
Play as Cereus, a mutated bacterium fused with a cereal box, in this absurd 3D adventure platformer. Roll, jump and slide through a hostile suburban home with countless hazards around every corner.
- 5
House Hopper
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Simulation with I Am Fish.
JUMP, FALL, CRACK, REPEAT! This stress inducing golf-like 3D platformer will push your resolve to the limit. Climb through super-hard levels, solve puzzles, unlock hidden playable objects! Beat your highscores! Is the game too hard? GET BETTER!
- 6
Hydro Chicks
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Adventure and Simulation with I Am Fish.
A difficult parkour game about riding a sea scooter upstream to reach the top of the Hydro Mountain.
- 7
I Am Bread
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Adventure and Simulation with I Am Fish.
You are bread. Your mission, become toast! Take on all hazards to deliciousness as you head on an epic adventure in one of the the toughest games ever baked. All of the game modes (including Bagel Race) are now unlocked so there's sure to be something to suit everyone's taste!
- 8
Gulltastrophe
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Adventure with I Am Fish.
It’s time to cause a Gulltastrophe! Reclaim your island home: Fly, Dash and combine foods to deliver hilarious Poop combos! Play solo or with friends. And yes… you can steal fries. 🍟
- 9
Aquaria
Single-player alternative to I Am Fish — playable solo, no multiplayer required.
Aquaria is an award-winning action-adventure game set in a massive underwater world teeming with life and filled with ancient secrets. Join Naija, a lone underwater adventurer, as she travels from hidden caves shrouded in darkness, to beautiful, sunlit oases in search of her past.
- 10
Super Meat Boy
Single-player alternative to I Am Fish — playable solo, no multiplayer required.
The infamous, tough-as-nails platformer comes to Steam with a playable Head Crab character (Steam-exclusive)!
- 11
Simple Fish Adventure
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Adventure and Simulation with I Am Fish.
Simple Fish Adventure is an unusual short physics-based platformer. Jump like a fish, think like a fish, be a fish! Overcome obstacles and suffer. Also includes co-op for up to 4 players.
- 12
Tasty Blue
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Adventure with I Am Fish.
Tasty Blue is an underwater side-scrolling eat 'em up game. You start as a small goldfish with an insatiable appetite. After being overfed by your owner, you'll escape into the ocean and eat everything that you encounter. The more you eat, the bigger you get!
- 13
Feesh
Single-player alternative to I Am Fish — playable solo, no multiplayer required.
Feesh: An arcade game of microscopic survival, and pesky sharks. The mechanic is simple; eat smaller feesh to get bigger, and avoid being eaten by bigger Feesh. Survive long enough, and you'll evolve! But try not to get naturally selected. A game by Tj H, with music by RDTR Productions
- 14
Feed and Grow: Fish
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Simulation with I Am Fish.
Hunt and eat other fish - simply, grow into larger beasts!
- 15
The End Is Nigh
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Adventure with I Am Fish.
The End Is Nigh is a sprawling adventure platformer where you die a lot, but thats ok because you are probably already dead anyway.
- 16
Pronty
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Adventure with I Am Fish.
Guide Pronty and its Javelin partner Bront as it defends the once great city of Royla. Explore the deep sea, fight mutant sea creatures, and discover the secrets behind this new Atlantis in this beautiful action-packed adventure.
- 17
Surgeon Simulator
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Simulation with I Am Fish.
Surgeon Simulator is an over-the-top operation sim, stitching together pitch-black humour with life-saving surgery. Become Dr. Burke, a would-be surgeon with a less than conventional toolkit, as he performs procedures on patients including the Heavy from TF2! ...is that a hammer?
- 18
Lost Skies
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Adventure with I Am Fish.
Chart a course in a breathtaking, but fractured world. Explore ancient ruins, master advanced technology, and craft your very own skyship to brave nature’s fury and colossal threats in Lost Skies. Team up with friends or go it alone in this awe-inspiring cooperative survival adventure.
- 19
Surgeon Simulator 2
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Simulation with I Am Fish.
It’s time to ‘scrub in’ in this physics-based surgery sim. Unearth the mysteries of the Bossa Labs Medical Facility and save Bob’s life.
- 20
Surgeon Simulator: Experience Reality
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Simulation with I Am Fish.
Surgeon Simulator is bringing the ER to VR! The most critically acclaimed and infamous surgery simulation game as you have never seen it before! Featuring all of the surgeries and twisted humour of the original favourite plus a few new surprises...
- 21
Deep Dungeons of Doom
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Adventure with I Am Fish.
This game is only for the brave. Dungeons await, each one deeper, each one more perilous and each one more challenging than the last.
- 22
Worlds Adrift Island Creator
Single-player alternative to I Am Fish — playable solo, no multiplayer required. Shares Simulation with I Am Fish.
Worlds Adrift is a Community-Crafted MMO: each and every island has been crafted by our playerbase. With the free Island Creator tool, this is your chance to create your own adventure for the community to experience. A crumbling ruin, or a teeming jungle, help expand the edges of Foundation ever further!