Fishing.io

Drop your net and see what comes up. Fishing.io sends you beneath the surface of a sprawling ocean, where fish dart between shadows and something strange always seems to be lurking just a little deeper than you can currently reach.

The loop is genuinely compelling — haul in catches, trade them for net upgrades, then push further into darker water where the rewards grow stranger and more valuable. Scattered through the depths are trapped characters waiting to be pulled free, each one adding something to your growing collection of trophies back on the surface.

What makes it work is the steady pull of progression. There's always a next tier of depth to unlock, always a creature you haven't seen yet. The art keeps things warm and inviting even as the ocean floor gets stranger, which makes the whole thing feel more like exploration than grinding.