Single-player games like Koi Farm
Below are 8 single-player Steam games similar to Koi Farm, 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 Koi Farm page.
Ranked picks
- 1
FISHERY
Single-player alternative to Koi Farm — playable solo, no multiplayer required. Shares Indie and Simulation with Koi Farm.
Fishery is a stylized aquarium simulation game. Harness your creativity to build and maintain beautiful aquatic habitats. Then relax and watch your beautiful fish enjoy their home.
- 2
Garden Life: A Cozy Simulator
Single-player alternative to Koi Farm — playable solo, no multiplayer required. Shares Simulation and Casual with Koi Farm.
Garden Life is a relaxing gardening game in which you create your dream garden in a peaceful, colourful world. Plant and add ornaments at your own pace, transforming an overgrown forgotten plot into a flourishing community garden.
- 3
Chillquarium
Single-player alternative to Koi Farm — playable solo, no multiplayer required. Shares Simulation and Casual with Koi Farm.
Chillquarium is a cozy and relaxing idle game. Buy fish and raise them in real time, then sell them to turn a profit! Customize your aquarium as you progress from a simple starter tank to your dream setup by filling your collection with rare exotic fish and ultra-rare color variants!
- 4
Whimside
Single-player alternative to Koi Farm — playable solo, no multiplayer required. Shares Indie and Casual with Koi Farm.
A creature collection game that sits at the bottom of your screen & fits easily into your routine. Whether you're working, studying, or relaxing, Whimside is always ready to offer you a cozy escape. Capture rare creatures, create new species & decorate your whimsical space!
- 5
Tiny Aquarium: Social Fishkeeping
Single-player alternative to Koi Farm — playable solo, no multiplayer required. Shares Indie and Simulation with Koi Farm.
A happy aquarium that lives at the bottom of your screen! Tiny Aquarium is a social idle simulator that keeps growing, even when offline. Hatch, sell fish, decorate, go fishin’, and visit your friends’ aquariums with bite-sized daily sessions.
- 6
Let's Build a Zoo
Single-player alternative to Koi Farm — playable solo, no multiplayer required. Shares Simulation with Koi Farm.
It's time to Build a Zoo! Construct and decorate enclosures, buy and breed animals, hire zookeepers and vets... then try your hand at DNA splicing, and stitch together over 300,000 different types of animal. This can only go smoothly...
- 7
Stardew Valley
Single-player alternative to Koi Farm — playable solo, no multiplayer required. Shares Indie and Simulation with Koi Farm.
You've inherited your grandfather's old farm plot in Stardew Valley. Armed with hand-me-down tools and a few coins, you set out to begin your new life. Can you learn to live off the land and turn these overgrown fields into a thriving home?
- 8
My Singing Monsters
Single-player alternative to Koi Farm — playable solo, no multiplayer required. Shares Simulation and Casual with Koi Farm.
Dive into the Musical World of My Singing Monsters! Breed them, feed them, listen to them sing! Breed & collect a menagerie of Monsters, each a living instrument! Build your paradise across 35+ Islands, customize your world, and enjoy endless music! There's never a dull moment in the Monster World!