Mordor: The Depths of Dejenol

Mordor: The Depths of Dejenol is fantasy RPG game released in 1995 for Windows 3.x, but it runs flawlessy even Windows XP (see this faq if you want to play Mordor in a virtual machine). Mordor: The Depths of Dejenol is a mix of first-person and top-down perspective dungeon crawler; the game shows the dungeon in by both perspectives at once, taking advantage of Windows features.