I have found a way for cheats to work!
1. Download the latest complete version of Kepperfx (at the time of this writing it's 0.4.5)
http://keeper.lubiki.pl/html/dk_keeperfx_dwnld.php 2. Extract the files using 7-zip (or whatever else works)
http://www.7-zip.org/
3. Go to your main dungeon keeper folder (The default is C:\GOG Games\Dungeon Keeper Gold) and create a folder called "keeperfx", then copy all of the keeperfx files into there
4. Create a shortcut for "launcher.exe" if you want
5. Open "launcher.exe" and click on the "installation" button then navigate to "C:\GOG Games\" highlight the dungeon keeper folder and click on "select folder"
6. It will ask you if you want to copy some files, just say "yes"
7. then click on "run options" check the box called "easter egg"
8. then just hit "start game" and that's it!
There are three different cheat menus.
The first one can be opened by pressing numpad enter
This menu allows you to spawn gold, random hero's/monsters and more
There is also something called "peter mode" not a clue as to what it does, so if anyone figures it out please tell me
The second one can be opened by possessing a creature then pressing F-12, right click to leave the creature to use the cheats. Everything in this menu is self explanatory.
The third one I found to be useless, when your possessing a creature and hit numpad enter and another menu pops up,
but I have no idea how to use it.
Keeperfx is not the only reason to install for cheating, this also has a better resolotion, and it does not have to run on dosbox! Which should make the game run a bit smoother.
Good Luck and Have Fun:)