Zork - Grand Inquisitor cheats and cheat codes for PC

Easter eggs:

Personalised greetings from the developer team members:
At the credits screen type "WHOAMI" as a code.

Unlock Zork: Grand Inquisitor developer team pictures:
Type "MIKESPANTS" at any point in the game, then 
navigate through the easter egg screen. 

When you stand in front of the skeleton in the Hades Subway 
Station type "EAT ME" as a code.

Enter "KILLMENOW"  at anytime in the game.

Go to the Hades' phone, type "HUISOK", then go ahead and 
solve the phone puzzle

Hints:
Listen to the Dungeon Master, and save the game before you 
start playing the maze game on the lottery ticket.
                                        
Gain Yastard vital spells:
Make the DM a cup of fairly repulsive cocoa. 

The ingredients of fairly repulsive cocoa: 
Moss of mareilon, honeycomb, fudge and hungus lard. 
Use his food processor to make it, and find something 
to warm it up in.