
As of Apr 12, 2026, Wizardry Master Series: Proving Grounds of the Mad Overlord Nintendo Entertainment System market value with loose price $25.24, CIB price $68.69, recent sold comps, and price history from RetroLedger. RetroLedger tracks 84 approved sales for Wizardry Master Series: Proving Grounds of the Mad Overlord, with recent sold comps and price history below.
Monthly trend data is summarized from approved sold listings so crawlers can read the pricing context directly instead of relying on the chart alone.











