Not to be confused with Epic Games' fps, Unreal is a fantasy action game released by Ubi Soft for the Amiga in 1990. It was ported to DOS and Atari ST in 1991.
Unreal combines two different gameplays: the first part of the game is a pseudo-3d flying sim where you control a dragon; you need to avoid obstacles and use fireballs to destroy enemies. The second part of the game, definitely more appealing, is a 2d side-scrolling platformer/action adventure. The best aspect of Unreal is its atmosphere, created by the excellent graphics - created by Franck Sauer and Marc Albinet - and by the beautiful music and sounds. That's why many compared it with Shadow of the Beast, even though the two games are entirely different.
This game is a classic, don't miss it!