I have no idea what this is, and it feels like every single page of the website assumes that I do.
Willing to bet a fair number of folks found this, figured out it was some kind of game, and immediately wanted to know more (I certainly did)... but had to dig around to do so. "Sauerbraten" is a very common German dish, for which every search engine (correctly) returns a big list of recipes.
Yeah, the two hard things in IT strike once again.