Warlord Games has posted up the playtest rules for Beyond the Gates of Antares over on their website. Just sign up to be a playtester and get your copy.
From the release:
The alpha version of the rules for Rick Priestley’s forthcoming science-fiction game Beyond the Beyond the Gates of Antares are now available to playtesters. Those of you who sign up to be a playtester will receive an email with the link to download the Alpha Rules PDF