The multiplayer game puts players in the cockpit of personally-customised mechs in a highly detailed sci-fi world.
It will adopt the free-to-play model used by games such as League of Legends and DOTA 2, allowing users to play for free and purchase additional in-game equipment.
Last year, the similarly themed Mechwarrior Online was also announced as a free-to-play title.
Hawken is the first title being developed by independent studio Adhesive Games. Users can sign up to participate in the closed beta now.
Hawken will release on PC on December 12, 2012.
Watch the Hawken gameplay trailer below: