One of the 'Warriors of the Green Planet Trilogy of Games'. The games are set on a future Earth that has suffered an 'axial flip of 72 degrees', resulting in various disasters and changes that result in this hypothetical post-apocalyptic game world.Warriors of the Green Planet is the ground combat game. Units include melee, gunpowder, laser, and 'para-psi' who have special radiation induced mental powers.A set of expansion rules allowed Warriors of the Green Planet to be played together with the companion games War of the Sky Galleons and Mind War. - BoardGameGeek