Kaiserreich is basically after WW1 if the Germans had won. It is a mod for the game Darkest Hour, if you google it you'll see what it is all about.

Though I think it might be a good idea to try an earlier start date as well even if we don't go for Kaiserreich. For instance 1836 or something along those lines still leaves a lot of options open for any nation in particular to rise to power. Colonial stuff would just have to be managed carefully so everyone doesn't go crazy over Africa.