Fish Eat Fish

Fish Eat Fish runs on the same "grow by eating smaller" logic that later made games like Agar.io famous, but sets it in an actual ocean where size alone decides every encounter: anything smaller is food, anything bigger is a threat, no exceptions.

Because there's no way to fight above your size class, staying near the edges of open water rather than the busiest feeding zones tends to reduce how often you're cornered by something bigger while still hunting. Chasing a fish just slightly smaller than you is usually safer than gambling on one close to your own size, since a near-even matchup risks getting eaten instead of eating. Agar.io runs the same size-based risk calculation in a top-down cell-eating format instead.