I want to buy this game, but the BI store is a bit confusing. On the game page it says: "Steam download required! (This game is protected by Steam. The download will be handled through their infrastructure.)" All well and good, but when I add it to my basket, my basket says: "You have a NON-STEAM version of Alternativa in your basket!", yet there is no obvious way to change version. What am I doing wrong?