I thought some people here might be interested in this. Metamorphosis Alpha was the precursor to GW, published in 1976. The general premise of the game was that Earth had sent a gigantic colony spaceship to a nearby star. Along the way, the ship passed through a radiation cloud, causing the central computer to malfunction and producing mutations in the people, flora and fauna aboard. The players were humans and/or mutants living on the ship several generations after the breakdown of civilization exploring their 'world.'
Saw this announcement today:
Signal Fire Studios LLC is proud to announce that 2010 will see the publication of the newest incarnation of the very first science fiction role playing game,
Metamorphosis Alpha! Using the Dungeons & Dragons 4th Edition game rules, players take on the role of mutated humans, plants, and animals and experience sci-fi action-adventure.
You can read more about it here:
Signal Fire Studios I think the release date for it may have been moved back to Q1 2011.