From the rules booklet:'11 exciting scenarios recreate futuristic man-to-alien combat fought in the depths of space with exotic weapons. Thoroughly tested for ease of play and fast action by experienced war gamers and science fiction fans, including Hugo-nominee George Alec Effinger.'Units include humans (marines in powered armor as well as lighter armed and armored mercenaries and militia), the 'felinoid' Shaanthra, and the reptilian T'Rana. Weapons range from needlers and lasers up to Sun Guns and nuclear grenades.Before each turn units are 'programmed' with the functions they will perform during the turn (move, fire, reload, etc.) in writing. This sometimes leads to hilariously unfortunate outcomes. - BoardGameGeek