Stonekeep PC Game Cheats

Invincibility:
Grab a skull from your inventory so that it replaces the + cursor. Click out of your inventory (but don’t throw the skull). Press left-shift + F9. If you followed the above steps, you will become invincible until you quit or load another game! Note that your companions can still die, but your health will never drop below 1 HP when using this cheat.

Kill the Shadow King!:
Contrary to popular belief, you do not have to trap the Shadow King to win the game. You can fight him and kill him using either your slayer-arrows or your shadow weapon. The trick is to hit him and back up, so he can't hit you. When you have nearly beaten him, the Shadow King will say something to Wahooka (if he is in your party) and Wahooka will say he has come to reclaim the thrown as Shadow King.