Single-player games like Fish Lab
Below are 8 single-player Steam games similar to Fish Lab, 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 Fish Lab page.
Ranked picks
- 1
Null Ascent: Stellar
Single-player alternative to Fish Lab — playable solo, no multiplayer required. Shares Action and Indie with Fish Lab.
an incremental game built around one simple loop: hover, destroy, upgrade, ascend. You have a little helper drone, a garden and plenty of powerups to unlock
- 2
CQ: Calling Any Station
Single-player alternative to Fish Lab — playable solo, no multiplayer required. Shares Indie and Casual with Fish Lab.
An idle/incremental game about a lone radio operator keying into a silent universe. Click or walk away, both work just as well. Build your station, log distant contacts, retune to grow stronger, and slowly decode what answers back.
- 3
Project: C.E.L.L.
Single-player alternative to Fish Lab — playable solo, no multiplayer required. Shares Action and Indie with Fish Lab.
An arcade incremental where you run cellular simulations for a megacorp obsessed with immortality. Break glucose, build combos, and spend ATP across a massive skill tree. Experiment with different glucose types, proteins, and lipids from your retro terminal.
- 4
Idle Tides
Single-player alternative to Fish Lab — playable solo, no multiplayer required. Shares Indie and Casual with Fish Lab.
Idle Tides is an idle incremental where your goal is simple: Catch as many fish as you can. Unlock new boats to automate your fishing, upgrade your fleet, and help the island with this fish overpopulation!
- 5
Slots Up!
Single-player alternative to Fish Lab — playable solo, no multiplayer required. Shares Casual with Fish Lab.
A short, incremental game about rigging a slot machine to become a millionaire.
- 6
Monslice
Single-player alternative to Fish Lab — playable solo, no multiplayer required. Shares Indie and Casual with Fish Lab.
Monslice is a short incremental game about slicing monsters, collecting resources, expanding your skill tree, and unlocking and buying more monsters!
- 7
Loopquarium
Single-player alternative to Fish Lab — playable solo, no multiplayer required. Shares Action and Indie with Fish Lab.
Loopquarium is an aquarium roguelite where you assemble a school of fish with unique abilities to repel invading apex predators. Start with a group of guppies, grow your population, and balance predator and prey to discover insane combos every run.
- 8
FishPond
Single-player alternative to Fish Lab — playable solo, no multiplayer required. Shares Indie and Casual with Fish Lab.
Build a living pond where every fish has a unique genetic code. Breed for rare traits, balance oxygen and hunger, unlock new species, and watch your ecosystem compose its own soundtrack in real time. Part sim, part idle game, part science experiment gone beautifully wrong.