Wizardry: Proving Grounds of the Mad Overlord is the first game in the Wizardry series of role-playing video games. It was developed by Andrew Greenberg and Robert Woodhead. The game was one of the first Dungeons & Dragons-style role-playing games to be written for computer play, and the first such game to offer color graphics. It was also the first true party-based role-playing video game.
The game eventually ended up as the first of a trilogy that also included Wizardry II: The Knight of Diamonds and Wizardry III: Legacy of Llylgamyn.