

Aquasim
Heaven Machine · 2026 · Simulation, Life Sim, Sandbox, Idler, Immersive Sim
PC
This game is free to play. Get it on Steam →
Screenshots
About Aquasim
AquaSim is a cozy, living aquarium that stays with you while you use your computer.No stress. No pressure. Just a peaceful world quietly evolving on your screen
AquaSim is designed as a desktop companion, something you don’t “play” constantly, but something that lives alongside you.Study, work, or relax while your fish grow, interact, and create a living ecosystem in real time.Take care of your aquarium at your own pace:
Thank you for checking out AquaSim!
AquaSim is designed as a desktop companion, something you don’t “play” constantly, but something that lives alongside you.Study, work, or relax while your fish grow, interact, and create a living ecosystem in real time.Take care of your aquarium at your own pace:
- • Feed your fish and watch them grow
• Clean and maintain water quality
• Decorate your tank with meaningful items
• Discover new species and rare variations
• Observe natural behaviors, interactions, and breeding
- Real-Time SimulationYour aquarium continues evolving even when you're not actively playing.
- Breeding
Fish reproduce with variation, creating unique and rare outcomes - 140+ Decorations
Some objects aren't just visual, they affect oxygen, happiness, and ecosystem balance - Bestiary Collection
Track species, discover variants, and complete your aquatic collection - Organic Progression
No forced missions, it gently rewards curiosity and care.
Thank you for checking out AquaSim!
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