"Drakkhen is a 3D computer role-playing game which was initially developed for the Amiga and Atari ST, and subsequently ported to several other platforms, including MS-DOS and the Super Nintendo Entertainment System.
Drakkhen was notable for being among the first role-playing games to feature a three-dimensional playing field. It did not employ a fully 3D game engine, instead implementing a hybrid approach using vectors and bitmapped character-scaling algorithms. Drakkhen features an animated day-night cycle, and the ability to wander freely about the game world, both rarities for a game of its era."
Source: Wikipedia, "Drakkhen," available under the CC-BY-SA License.