Idle Fish
Merge matching fish into larger ones while the price of every new purchase climbs.

Merging with an escalating price curve, which is what gives this one a shape. Every fish you buy costs more than the last, so simply purchasing your way up the ladder stops working quickly and merging becomes the only affordable route.
That curve is the design. Early on you can buy freely; by the middle you are counting whether a purchase is worth more than waiting for two existing fish to pay for a merge instead.
The mysterious top-level fish is the stated goal, and reaching it takes real accumulation.
Controls
Drag one fish onto an identical one to merge them.
How to Play
- Buy a few starter fish while they are cheap.
- Merge identical ones into the next tier.
- Watch the purchase price climb and adjust.
- Keep merging toward the highest fish.
Tips & Tricks
Stop buying earlier than feels natural. Once the price passes what two tanks of income can cover, every coin does more work sitting in a merge than in a purchase.
Frequently Asked Questions
Why does each new fish cost more?
The price climbs with every purchase, which forces merging to become the main route rather than buying.