Chillquarium

Idle aquarium collector about raising, selling, and displaying fish

Ben Reber · Released Sep 6, 2023

Reviews: Very Positive; 92% of 8,401
Recent reviews: Mostly Positive; 78% of 52 in 30 days
Playing now: 176; right now
Steam Deck: Playable
Last update: 1 year ago; May 30, 2025

Free demo available, 5 playing it now: get the demo.

What is Chillquarium?

A 2D single-player idle simulation in which you buy fish packs, feed fish as they grow in real time, then sell them or keep them for ticket income. The collection includes 156 fish types with rare color variants, while the aquarium can be decorated around a real-time day-night cycle.

For you if...

+you want a hands-off collector for brief check-ins
+you enjoy decorating aquariums and watching fish idle
+you like chasing fish and rare color variants

Not for you if...

−you want deep management or active decision-making
−you dislike slow, randomized collection grinds
−you expect the gameplay loop to change frequently

What players say

92% of 8,401 reviews are positive · 78% of 52 in the last 30 days

Players praise the fish art, aquarium decoration, and low-maintenance background play. The most common complaints are that the buy-feed-sell loop is shallow and repetitive, progression is heavily time-gated, and completing the collection becomes a long randomized grind.

Screenshots and trailer

Chillquarium system requirements

As published by the developer.

Minimum

OS: Windows 10
Processor: 2.4 GHz Dual Core
Memory: 2 GB RAM
Storage: 100 MB available space

PC version details

DRM, required accounts, controller support and Steam features.

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows, macOS
Achievements: 21
Steam features: Cloud saves, Family Sharing

Steam Deck: Playable

Sometimes shows mouse, keyboard or non-Deck controller icons
Some in-game text is small and may be hard to read
All functionality is accessible with the default controller configuration
Default graphics settings perform well on Steam Deck

Multiplayer and co-op

Single-player

Languages

Full audio: English, French, Italian, German, Japanese, Korean, Portuguese - Brazil, Russian, Simplified Chinese, Spanish - Latin America, Traditional Chinese.