O.D.T.

O.D.T. - Escape...Or Die Trying, is a video game created by Psygnosis for the PlayStation and Microsoft Windows. It is a 3D action-adventure, with some role-playing elements. Playing as 1 of 4 characters, the goal is to explore the "Forbidden Zone" to look for gas canisters to re-inflate one's balloon, which had crashed on the roof of a mysterious tower. Along the way puzzles are solved, monsters are fought, and so on. An N64 version was completed but never released, though it has recently been leaked online.