Every Steam achievement, what unlocks it and how many players have it.
Each level of the aquarium: the experience it takes, its size and what it gives.
How two fish make a new one, and the odds of each rarity.
Every decoration for the aquarium, and where it comes from.
Every species: its rarity, its grades and colours, and how it works.
Oct 2, 2026 · from the developers on Steam
PC FISH Update: Invite Friends, New DLC & More! A new PC FISH update is here! Invite your friends, decorate your aquarium with sunken treasures, and enjoy several quality-of-life improvements. 🐟 Friend Invite System Added You can now invite up to 15 friends per day and receive…
| Build | Released | Changes |
|---|---|---|
| Build 25673563 PC FISH Update: Invite Friends, Discover Sunken Treasures & More! | Oct 2, 2026 | 12 added3 changed |
| Build 25252011 | Sep 11, 2026 | No changes |
| Build 25248907 September 11 Update – Quality-of-Life Improvements | Sep 11, 2026 | 2 added3 changed |
| Build 25148411 PC FISH September 6 Update | Sep 6, 2026 | No changes |
| Build 25123663 MAJOR PC FISH’s First Season Is Here! | Sep 5, 2026 | 17 added32 changed12 removed |
