Single-player games like My Koi
Below are 8 single-player Steam games similar to My 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 My Koi page.
Ranked picks
- 1
Be
Single-player alternative to My Koi — playable solo, no multiplayer required. Shares Indie and Simulation with My Koi.
Build, relax or explore in a beautiful world. Chill out next to a lake or build crazy structures (with friends!) Choose your own weather & time of day.
- 2
Subside
Single-player alternative to My Koi — playable solo, no multiplayer required. Shares Simulation with My Koi.
Subside is an immersive aquatic VR experience with multiple areas to explore and lifelike aquatic creatures to interact with. Crafted with unparalleled realism, it aims to replicate the nuances of real-life swimming and diving in shallow waters
- 3
Fish Simulator: Aquarium Manager
Single-player alternative to My Koi — playable solo, no multiplayer required. Shares Indie and Simulation with My Koi.
Discover a myriad of exotic species in this relaxing aquarium manager. Balance your resources and care for your fish to build the ultimate habitat.
- 4
Creatura
Single-player alternative to My Koi — playable solo, no multiplayer required. Shares Indie and Simulation with My Koi.
Seed, Breed, Create. From single cell organisms to complex ecosystems. Evolve every part of your own unique aquarium / terrarium by applying scientifically accurate principles of natural and artificial selection, in Creatura - ultimate Virtual Evolution Vivarium Simulator.
- 5
Guppy
Single-player alternative to My Koi — playable solo, no multiplayer required. Shares Indie and Simulation with My Koi.
Guppy is a 2D watercolor fish simulation. Hide in the shade of lilies and venture carefully into the open in search of food. Try not to get eaten.
- 6
FISHERY
Single-player alternative to My Koi — playable solo, no multiplayer required. Shares Indie and Simulation with My Koi.
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.
- 7
DrainSim
Single-player alternative to My Koi — playable solo, no multiplayer required. Shares Indie and Simulation with My Koi.
Dive into DrainSim and seize control of the floods! Clear the city's submerged streets, with a huge range of different tools from rakes to submersible pumps. Embrace the satisfaction of restoring the water flow. Become the city's hero, one drain at a time.
- 8
Tree Bonsai
Single-player alternative to My Koi — playable solo, no multiplayer required. Shares Indie and Simulation with My Koi.
An artistic bonsai tree simulation game that follows the life cycle of a plum tree. You can cut branches, add nutrients, and graft while the seasons pass and your tree grows. You can finally fulfill your dreams of a digital bonsai.