I have received today, installed and tested the game. It can load and activate only on STEAM and is about 10 GB. For this you need a free Steam account.
At first I had problems activating. But after a few minutes I was able to load the game via STEAM.
The game is designed in German and very extensive, for example, with various factions, choose 2 player mode or survivors towers and can in the crypt Redeem distribute your points and various things to buy virtual, for example concept drawings of the characters or better moves for the characters. But I do not want to reveal too much. :-)
Oh yes, the game character GORO I could also enable, as I had pre-ordered the game.
The story mode also works. But if I have not yet begun. I do not regret that I've spent about 50 euros for it.
Good luck with the installation