No revenue estimate for GOG — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $2.4K — a different platform, not this one.

O.D.T.: Escape... Or Die Trying

Find yourself immersed in an atmosphere of mystery, magic and mayhem. Fight your way through incredible, multi-leveled, 3D worlds while searching for 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! 4 Compelling Characters to play, each with unique attributes including weapon control, magic ability, physical strength and combat experience. 16 spells to learn and four deadly weapons. 70 sectors to explore, complete with unique ambience, traps and more than 40 enemies. Fast and intuitive gameplay giving a heightened sense of realism and continuous action.