We do not know what is going on but Payday 2 is for free on Steam at this moment, so you might wanna hop in Steam and claim the game instantly while it’s still free!!! We’ll bring an update as soon as we find out why is this so.
UPDATE: Ok, so it seems like Payday 2 devs are going to give away 5 million copies for free! They’ve just announced that on the game’s Store discussions section. It seems like the game is dying so… yeah, give the free copies right after the patch 149 is deployed.