Games like My Koi
by Sakana Studios
My Koi is a 3D modern-day life simulation: customise fish, manage ponds and feed fish. Aquarium Designer and Fish Game play most like My Koi. Of the 12 closest games below, most share its relaxing, nature and life sim.
View on Steam · $4.99 →
Ranked by how similar the games actually are, not by sales. Released and Price are remembered for next time.
Closest matches
Aquarium Designer
Oct 21, 2021 · Sigur Studio
Both: Underwater · Relaxing · Realistic
3D modern-day life sim management, realistic 3D. Designing aquariums, managing fish needs and earning money.
UnderwaterRelaxingFamily FriendlySubmarineResource ManagementRealisticLife SimIdlerSingleplayerManagement👍 1,087Fish Game
Oct 26, 2023 · A Shell in the Pit Games, Creative Ink Games
Both: Underwater · Life Sim
3D modern-day aquarium life simulation, realistic 3D render. Managing fish and water chemistry, designing aquariums, propagating aquatic plants.
Immersive SimCreature CollectorSandboxBuildingIdlerAuto BattlerFishingEducationUnderwaterLife Sim👍 596Stone Simulator – Just Be a Rock
Aug 19, 2025 · STFGames
Both: Nature · Life Sim · Relaxing
Third-person 3D nature meditative idler simulator, minimalist visuals. Exist passively, observe seasons and weather, watch time pass.
ExplorationImmersive SimIdlerNatureSurvivalPvELife Sim3DThird PersonRelaxing👍 1,542