Dungeon Hack (šifre)

Dungeon Hack

In Dos, type: 
set aesop_diag=1

Now start the program with HACK as a parameter
and now you have:

[A] : Destroys all monsters
[t] : activates text mode
[I] : you can go through walls, doors and windows
[O] : practise magic and get new items

This sure looks like the cheat for Eye of the
Beholder 3, doesn't it?  Does anybody know what
these games have in common?