The European closed beta for Planetside 2 is coming next week, according to Sony. You can sign up for duty by heading this way, and if selected you'll get a voucher that will be redeemable on the PS Store on March 25.
If you're blissfully unaware of what it is, Planetside 2 is an MMO first-person shooter that throws thousands of players into battle on huge persistent maps. When it all clicks together it works wonderfully, as we noted when we reviewed the game way back in 2012 (you can read that here - although bear in mind that plenty has changed in that time).