The following are known Game Genie Codes for Wizardry: Proving Grounds of the Mad Overlord on Nintendo Entertainment System (NES).

• AEVEIPAL
  Annointed Mace costs nothing instead of 30
• AAVEIPIZ
  Long Sword costs nothing instead of 25
• AEXEIPIP
  Short Sword costs nothing instead of 15
• AEVEIZAZ
  Small Shield costs nothing instead of 20
• AAVEIZAP
  Staff costs nothing instead of 10
• AEXEIZIA
  Dagger costs nothing instead of 15
• AAVEILIP
  Robes costs nothing instead of 15
• AEVEGYIA
  S of Pain costs nothing instead of 500
• AAXEKAIA
  S of Fire costs nothing instead of 500
• AEXEGYIP
  Body Armor costs nothing instead of 1500
• AAXEILAG
  Large Shield costs nothing instead of 40
• AEXEILAI
  Leather Armor costs nothing instead of 50
• AEVEILEP
  Chain Mail costs nothing instead of 90
• AAXEGGZA
  Breast Plate costs nothing instead of 200
• AEXEGGPA
  Helm costs nothing instead of 100
• AEVEGGIA
  S of Curing costs nothing instead of 500
• AAXEGTAL
  Rod of Iron costs nothing instead of 3000
• AEXEGTIP
  Padded Leather costs nothing instead of 1500
• AEVEGTIP
  Shiny Chain costs nothing instead of 1500
• AAXEGYIP
  Sturdy Plate costs nothing instead of 1500
• AAVEGYIP
  Iron Shield costs nothing instead of 1500
• AEVEKGAT
  Gloves of Copper costs nothing instead of 6000
• AAVEKLIP
  S of Glass costs nothing instead of 1500
• AAXEKPIZ
  Studly Staff costs nothing instead of 2500
• AAXEGILA
  S of Neutralizing costs nothing instead of 300
• AAVEIGAI + AAVEGGYA
  Plate Mail costs nothing instead of 750
• AEXEGIAI + AEXELIPA
  Blade of Biting costs nothing instead of 15000