Vanished Powers is a cancelled action adventure / RPG that was in development in 1995 / 1996 by Neon Software (creators of Tunnel B1) and it would have been published by Ocean for the original Playstation and PC. It was going to use an isometric 2D graphic style, with prerendered backgrounds and lots of FMVs, along with more than 70 (weird) characters, modeled with Silicon Graphics. In the end the Vanished Powers was never released, but we dont know the reasons behind this decision.
Thanks to Celine for the contribution! Scans from Cd Consoles #15 and Player One #62