Ultima Underworld - The Stygian Abyss

Cheat mode:
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Enter one of the following codes during game play to
activate the corresponding cheat function.
Result             Code
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Unlimited strength   - [F10]G
More light         - [F10]I
Level skip         - [F10]W
Stop time and monsters - [F10]Z
Unlimited scrolls and potions:
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Use a fireball spell on a potion or scroll. Collect the
remnants of the destroyed item and use it. The remnants
will have the same effect as the original potion or scroll
and may be used an unlimited amount of time.
Tip
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The spell VAS ORT YLEM can add some magic
to your inventory