Virtual Aquarium - Overlay Desktop Game

A casual aquarium simulation that puts fish over your desktop

Overlay Games · Released Apr 2, 2022

Reviews: Mostly Positive; 78% of 183
Recent reviews: Not enough recent
Players: 1; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 3 years ago; Feb 14, 2023
Minimum PC: HD 4000; 2 GB RAM · 0.5 GB disk; Full requirements

What is Virtual Aquarium - Overlay Desktop Game?

In this free-to-play simulation, freshwater and saltwater fish grow and become more colorful over time. You click individual fish to check their names and species. The aquarium can start with your computer and hibernates when you launch another game in fullscreen.

For you if...

+you enjoy relaxed simulations with little active involvement

Not for you if...

−you expect lifelike swimming and detailed fish behavior

What players say

78% of 183 reviews are positive

Players appreciate keeping the fish visible during other activities. Recurring complaints focus on limited gameplay and paid add-ons that lock away extra fish and settings.

Screenshots and trailer

Virtual Aquarium - Overlay Desktop Game screenshot 1

Virtual Aquarium - Overlay Desktop Game system requirements

Minimum: HD 4000, 2 GB RAM, 0.5 GB of disk space.

As published by the developer.

Can my PC run Virtual Aquarium - Overlay Desktop Game?

Tell us your graphics card once and every game page will answer this for you.

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Minimum

OS: Windows 10
Processor: 2.0 GHz Intel i3 or equivalent
Graphics: HD Graphics 4000 or above
Memory: 2 GB RAM
Storage: 512 MB available space
DirectX: Version 9.0

Does Virtual Aquarium - Overlay Desktop Game have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does Virtual Aquarium - Overlay Desktop Game run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 12
Steam features: Cloud saves, Family Sharing
Languages: Text only: English, French, Italian, German, Spanish - Spain, Arabic, Traditional Chinese, Simplified Chinese, Dutch, Japanese, Polish, Portuguese - Portugal, Russian, Thai, Turkish, Korean.

Does Virtual Aquarium - Overlay Desktop Game use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam