Single-player games like Whimsy Koi
Below are 8 single-player Steam games similar to Whimsy Koi, 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 Whimsy Koi page.
Ranked picks
- 1
Bottled by Bears
Single-player alternative to Whimsy Koi — playable solo, no multiplayer required. Shares Simulation with Whimsy Koi.
Join a family of bears and run the buzziest little honey farm! Collect and discover rare bees, bottle honey jars, expand your farm, and watch your flowery field bloom in this cozy idle management game.
- 2
Mothiary
Single-player alternative to Whimsy Koi — playable solo, no multiplayer required. Shares Simulation with Whimsy Koi.
An idle game about collecting moths.
- 3
Mammalarium
Single-player alternative to Whimsy Koi — playable solo, no multiplayer required. Shares Simulation with Whimsy Koi.
Relax and collect over 500 unique mammals in this cozy idle game. Watch babies grow into magnificent adults in real-time, customize warm woodland habitats across 9 themed packs, and discover rare species from tiny shrews to great whales.
- 4
High Rice
Single-player alternative to Whimsy Koi — playable solo, no multiplayer required. Shares Simulation with Whimsy Koi.
In this short incremental farming game, you will plant rice on a rooftop, create various goods out of it, automate using robot helpers and watch the citizens of the hidden cyberpunk city evolve as they patronize your products.
- 5
Working Class Monsters
Single-player alternative to Whimsy Koi — playable solo, no multiplayer required. Shares Simulation with Whimsy Koi.
Open packs. Collect monsters. Watch the gold pile up. A cozy incremental about a monster workforce - place goblins, undead, and abyssal horrors across tiles where the right neighbors mean bigger payouts. Grow your sleepy island into a gold printing empire and unlock hidden islands to settle on.
- 6
Cats Are Money
Single-player alternative to Whimsy Koi — playable solo, no multiplayer required. Shares Simulation with Whimsy Koi.
Cats are Money is a cozy idle game in the "Tamagotchi" genre where you manage a farm and collect unique cats into your collection. Take care of your pets, feed them, and play with them. Upgrade your farm, unlock new breeds and businesses.
- 7
Nanoquarium
Single-player alternative to Whimsy Koi — playable solo, no multiplayer required. Shares Simulation with Whimsy Koi.
A whisper-quiet aquarium that lives in the corner of your screen. Collect 200+ real-world fish across tropical, coldwater and reef tanks, breed them for rare strains, run a whole fishroom, and let the tank tick over while you work. No pressure, no fail state — just your fish, drifting.
- 8
Space Catnips
Single-player alternative to Whimsy Koi — playable solo, no multiplayer required. Shares Simulation with Whimsy Koi.
Space Catnips is an incremental game where you harvest catnips from alien planets and showcase them in your bar to attract a wide variety of space cats!