use coupon code: FACEB-JULY2-20PEC
and it should read as $28.80 for the regular edition. The code they send you when the game is released can be used on Steam from what I understand. The augmented edition will be $40 USD. I have no clue how long the code will be valid for. If I didn't already buy a tonnage of games from the Steam sale, I would have picked this up.