Shadowcaster

Shadowcaster is a first-person shooter/role-playing computer game from 1993 developed by Raven Software.

The player takes the role of Kirt, a human with powers of shapeshifting. Among other forms, Kirt can become a huge cat-like animal, a floating tentacle-wielding gazer, and a dragon.

The game utilized a hybrid game engine that was created by John Carmack as a successor of the Wolfenstein 3-D technology and the predecessor of the Doom engine.