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Idlequarium

Idlequarium

Idlequarium is a casual simulation game where you raise adorable little fish to earn coins, purchase decorations, and build a fully customized aquarium.The game sits anywhere on your desktop, letting you interact with your live aquarium during work or study breaks.

Released Nov 30, 2025 Developer NutsX Publisher Gamersky Games Platforms Windows IdlerCreature CollectorUnderwaterManagementEconomy
View on Steam ↗ $1.79 (US · as of 2026-09-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26.

70.7%positive259 reviews
Not recommended · 0 found this helpful

“Overall Idlequarium feels like a solid creature collector and idler game that allows you to progress collection goals while offline (i.e. fish will grow and mature while you are not physically in-game). There are also interesting features (compared to other simpler idler games)…”

— a player, Steam review · 54 hrs played
Not recommended · 1 found this helpful

“I kept looking at some of those fish, inconsistent outlines and overly pixelated but not in a way where it can be chalked up to being its style. So, sketched out I checked the reviews and yeah... it makes sense that Gen AI is being used. I'm sad that I didn't notice it sooner…”

— a player, Steam review · 19 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. History through 2026-08 via SteamCharts; self-collected from the Steam API since Aug 2026.

1,084all-time peak
0 250 500 2026 387 avg · Dec 2025

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.

37achievements
20.9%median completion
1.8%rarest: River Collector
90.6% of players 89.1% of players 74.4% of players 66.2% of players 53.9% of players 52.8% of players 49.5% of players 45.0% of players 40.1% of players 38.5% of players 31.7% of players 30.5% of players 27.8% of players 27.0% of players 25.7% of players 23.6% of players 21.4% of players 21.1% of players 20.9% of players 17.8% of players 15.6% of players 13.9% of players 13.9% of players 12.1% of players 11.8% of players 8.2% of players 5.3% of players 5.0% of players 3.8% of players 3.0% of players 2.8% of players 2.6% of players 2.1% of players 2.0% of players 1.8% of players 1.8% of players 1.8% of players 90.6% 0% most earned rarest
Almost everyone has
90.6%First Friend — Raise your first fish
89.1%A Little Something — Equip one decoration
74.4%True Colors — Unlock all three colors for a single fish
Rarest badges of honor
1.8%River Collector — Unlock all Golden fish in the River Dwellers set
1.8%Coral Collector — Unlock all Golden fish in the Coral Guardian set
1.8%Shallow Sea Collector — Unlock all Golden fish in the Reef Sprites set

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Apr 26, 2026
April 26 Emergency Update

Dear players, Due to an unexpected server failure today, players were unable to log into the game normally. We sincerely apologize for the inconvenience. After urgent investigation and repairs, the is

Jan 19, 2026
Mecha Great White Shark Attacks! Free DLC "Age of Mechs" Now Live!

Calling all Fish Bosses! A huge thank you for your continued support of Idlequarium . Your passion, feedback, and suggestions have helped this little desktop world grow into something special. We’re c

Jan 16, 2026
2026/1/17 Minor Update

2026/1/17 Minor Update Fixed the issue of game crashes for some players

Jan 13, 2026
2026/1/14 Minor Update

2026/1/14 Minor Update Fixed the bug where decorations cannot be removed with right-click under specific conditions

Jan 07, 2026
2026/1/7 Minor Update

2026/1/7 Minor Update Fixed the bug of missing icons when opening packs

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-26.

GenresCasual, Indie, Simulation
Player tagsIdler · Creature Collector · Underwater · Management · Economy · Automation · Nature · Fishing · Shop Keeper · Life Sim · Incremental · 2D (Steam store community voting)
FeaturesSingle-player · Steam Achievements · Steam Cloud · Family Sharing
LanguagesEnglish, Simplified Chinese, Japanese, Korean, Traditional Chinese, French, German, Russian, Portuguese - Brazil, Spanish - Latin America
Achievements37
Minimum system requirements (PC)

Minimum: OS: windows10 Processor: 2.4 GHz Dual Core Memory: 4 GB RAM Graphics: Graphics card with DX9 DirectX: Version 9.0 Network: Broadband Internet connection Storage: 300 MB available space