supermariowar (Super Mario multiplayer game)

Super Mario War is a fan-made multiplayer Super Mario Bros. style
deathmatch game in which players try to beat one another in a variety of
gameplay modes. You can play on teams, design your own levels, design your
own worlds, and much more! The goal is to stomp as many other Marios as
possible to win the game. It's a tribute to Nintendo and the game Mario
War by Samuele Poletto.

Notes:

- The game executable is called "smw".
- Single player games against bots are supported.
- Only 640x480 windowed and fullscreen video modes are supported.