While playing a game, press [Enter], type "Oh grosser Thomas, erlöse mich!", 
and press [Enter] again to enable cheat mode. Then, enter one of the following 
codes to activate the corresponding cheat function:

Result - Cheat Code
1000 energy - [Shift] + [Alt] + E 
1000 Xenit - [Shift] + [Alt] + X 
Fast building - [Shift] + [Alt] + Z 
Full map - [Shift] + [Alt] + V