Atlas Reactor arrives on Steam early access today

[AL:Atlas]Trion Worlds has just announced that Atlas Reactor enters Steam’s early access program today. The launch begins with a sale; the game will run $19.99 at the start as part of Trion’s new buy-to-play business model. Still not sure about paying? Try it first:

To kick it off, Trion is holding a free weekend beginning at 5:00 p.m. PT today and ending Sunday, May 15 at 11:59 p.m. PT. During the free weekend, anyone can play Atlas Reactor, with access to all current freelancers. Trion today will also offer a preview of the game’s spectator mode, and during an upcoming livestream will tease a new freelancer, who will become available next week.

The team is also revealing a new mode it’s calling “Custom Game Spectator Mode,” which “lets anyone jump into an active custom game and watch two teams battle.”