Liero is a simple game. Pick your five weapons, and unleash your inner fury.
The game is always played one versus one on a map of your choice, and yes,
you have to play with someone who is right next to you.

To shoot is of course easy enough to figure out, but if you want to step up
your game, you need to figure out things like how to swing yourself to safety
with the ninja rope, to use timed weapons for area denial, to hunt without
being hunted, to ambush, hit and run, and control that darn guided missile.

Lierolibre is a 100% free fork of Liero, and stays true to the original
gameplay.