From the game box:
A Truly Classic RPG!
Calling all fans of classic, first-person role playing games! Parties shall be assembled, stats shall be rolled, items, weapons, and armor shall be equipped, and monsters shall be slain. This is exploration and character development in the purest sense.
Let your imagination run wild as you explore the dark corners of the Tower in the nostalgic wireframe design of Classic Mode, or immerse yourself in the vibrant 3-D art of Modern Mode.