The Planit game was included with Omni Magazine Volume 14 #1, October 1991 edition. From the publisher's site: "The Omni Evolution Game Life’s not one big crapshoot. Instead it’s a board game that lets each player be Gaia." "In the first phase, players must fill the atmosphere up with oxygen. In the second phase, they must evolve higher animals in sequence. The first to evolve 'Evolutionary Humans" wins." Players play cards from their hand to affect the environment and evolution of life on their individual planets, which are represented on the game map.