Possibly it was not called Necromancer, but Wilderness Campaign? Game features a necromancer's castle: https://www.mobygames.com/game/apple2/wilderness-campaign

Possibly it was not called Necromancer, but Wilderness Campaign? Game features a necromancer's castle: https://www.mobygames.com/game/apple2/wilderness-campaign https://www.mobygames.com/game/apple2/wilderness-campaign Or perhaps "The Eternal Dagger", which has a necromancer's cave: https://gamefaqs.gamespot.com/appleii/577550-the-eternal-dagger/map/3118-necromancers-cave https://gamefaqs.gamespot.com/appleii/577550-the-eternal-dag...