Using a text editor, create a dummy file named aesop.exe in the game directory. Type set aesop_diag=1 at the command prompt, then typehack to load the game. Activate the following cheats by pressing the corresponding keys. Note: Enabling some codes may cause the game to crash in certain places:

CHEAT FUNCTION - KEY
Destroy all monsters - A
Activate text mode - T
No clipping - I
Gain a level - X
Practice magic, new items - O
Change all texture/color settings - F6
Change floor color/ceiling texture - F4
Change color of wall texture - F5
Change floor and ceiling texture - F2
Changes wall texture on level. - F3
Display game stats; poisons player. - F9
Move player one floor down - F7
Moves player one floor up - F8
Outline level in automap - F10
Toggle reduced decoration - F1