Started making a one keyboard, 2-4 players snowball fight game some days ago. You basically need to find a patch of snow, make a snowball and try to throw it at the other players. You can hold 3 balls at a time, then you need to throw one to make another. I want an arcadey Bomberman inspired feel.
I'm developing it using Unity and will be available for free in the browser with WebGL. Everything is made by me, might get someone else to do the music.