This is a top-down turn-based shooter. This works because of a momentum mechanic that forces players to think a couple of moves ahead. 

Mechanics:

• Primarily point-and-click based (though keyboard is needed)

• Turn based

• Free-for-all, PvP or PvE

• Players are shot when one moves to the same row or column

• Players have momentum in the last moved direction

• River which removes momentum, adding complexity

• Obstacles cannot be moved or shot through

• Randomly generated map of chosen size, characters placed on map by player

• Bots can be placed alongside players, allowing singleplayer gameplay

• 8-bit (square wave) sounds

• Completely local, ie multiplayer is local, occuring in one instance on one machine

Additional features

• Option for instant respawn (rather than new round)

• Option for hiding map behind obstacles (continuous or discrete, using tiles)

• Option for "toroidal mode", allowing crossing of the edge of the map and appearing on opposite edge

• Option for removing river