The survivors on Orion declare themselves the 'New Orions' (not to be confused for the 'Ancient Orions'). In an ironic turn of events, the organism was accidentally loosed on the Antarans, wiping out 98% of their population in the Antaran sector. Harvester Gamma would infect and multiply, potentially destroying any species it was set loose on. The disappearance coincides, it is discovered, with the release of a prototype virus-like organism, Harvester Gamma. They enslaved whole planets, destroyed all technologies and military outposts and effectively made it impossible for a retaliation of any kind.Īt the beginning of MOO3, set a thousand years later, the Antarans have mysteriously disappeared. After faking their eradication for 25 Galactic Cycles, the Antarans returned to defeat the young races of the Orion Sector over the course of another 25 G.C. It turns out that what was thought to be Antares in Master of Orion II was really 'ConJenn', a forward base for the Antarans.

By taking control of one of sixteen species, players attempt to claim dominance in the Orion Sector.

Master of orion 3 races