https://www.gamespot.com/articles/were-giving-away-ps4-closed-beta-codes-for-defianc/1100-6458583/

We're giving away 1,000 Closed Beta codes for Defiance 2050 on PS4 (North America only). In Defiance 2050’s version of San Francisco, players are transported to a dynamic open world where they can explore and fight in skirmishes and story-driven missions on an epic scale.

Entry is open to North America only on PS4. For worldwide codes on Xbox One, go here.