O.D.T.: Escape... ...Or Die Trying (1998)

Find yourself immersed in an atmosphere of mystery, magic and mayhem. Fight your way through incredible, multi-leveled, 3D worlds while searching for a magical green pearl that will help save millions from decimation. With hand-to-hand combat, devastating weapon power and some amazing magic spells, O.D.T. leads you deep into a mysterious tower full of hideous enemies and hidden dangers - it gets tough but there's no turning back!