If you're not familiar with the Myth series, suffice to say that it's somewhat legendary among long-time Mac gamers. It stands next to Marathon as one of a very small catalogue of games that Mac gamers could hold over their PC-owning friends' heads back in the good old days. (Not coincidentally, they were developed by the same company, Bungie, who would later go on to join the Dark Side and make the Halo games for Microsoft.) Now, Project Magma, a group that works to keep the Myth series current, has announced that they are opening a public beta for their newest version, and they're seeking beta users to help bug-proof the code.