Populous: The Beginning PC Game Cheats

Cheats:
Hit the TAB and F11 keys together to enter text entry mode:

Type in "byrne" - this activates cheat mode.

during the game hitting TAB and F3 gives all spells.
TAB and F4 gives all buildings
TAB and F5 gives full Mana.

Choose bonus level:
While playing (at any level), press the F12-button and after that press the F11-button. Then you get a demo. If a level passes you want to play, press the spacebar or the enter-button than you play the game from the moment you have chosen.