Unreal

Unreal was released sometime in 1998. Unlike other FPS games that were basically shoot enemy, find key, exit level, Unreal has almost seamless levels and very intelligent enemies that will dodge fire, retreat and then attack you with more enemies. The game has beautiful graphics, sound, and great online play. It also has a very buggy editor.

Dma: Just add path entries in UnrealTournament that refer to your Unreal-1 map/music directories and do

   unrealtournament c:\unreal\maps\Vortex2.unr?game=UnrealI.VRikersGame?defaultplayer=UnrealI.MaleOne

or something like that. Then you can do "summon slv2.konglauncher" or something fun... :-)