Yeah, back on topic.
Fishing is a fun mini-game. I't been done before, but not in this fashion (I think):
Players: As many as you want.
Terrain: Preferably water, and a little spot for netting the fish.
Units: A corsair, and something else that can shoot. Or whatever else unit you can come up with.
Then fish, which would be flying units, like overlords, mutalisks and so on.
Nevermind, I want to make this myself.
So I'm starting at this moment.