Nnumpad 1 = all resources mega-cheat!
This cheat will pretty much give you every resource possible: wood, food, water, gold, also gives you a load of experience as well as a few others. Once activated it may take a second for you to notice the effects.
Numpad 2 = dyn-o-mite! Health-Packs and Trees
These are the three items you can get during the game, this hack needs to be turned on when you start the level as it changes the level reset value for the items, so if you start without the hack it wont be activated till the next level.