Might and Magic Book One: The Secret of the Inner Sanctum (also known as simply Might and Magic) is an early role-playing video game, first in the popular and influential Might and Magic franchise. It was released in 1986 as New World Computing's debut, ported to numerous platforms and re-released continuously through the early '90s.
This movie uses the Japanese version of the game, which doesn't have the item glitch that allows you to skips most of the game.