Wizardry is a registered trademark of Drecom Co., Ltd. Proving Grounds of the Mad Overlord Copyright (C) (1981-2024) by FRPG Corporation. All rights reserved. Proving Grounds of the Mad Overlord is a copyrighted program licensed to SirTech Entertainment Corp by FRPG Corporation. Proving Grounds of the Mad Overlord has been licensed to Digital Eclipse Entertainment Partners Co., by SirTech Entertainment Corp.