62nd top retro game: the staff called it "easily one of the best entries in the long-running Ultima series." In 1998, PC Gamer declared it the 18th-best computer game ever released, and the editors called it "Light-years ahead of their time, and still regarded as some of the best roleplaying games ever created". LegacyUltima Underworld has been cited as the first RPG to feature first-person action in a 3D environment, and even as the first true first-person 3D game in any genre. Rival 3D games appeared; Legends of Valour advertised "Ultima Underworld, move over!" Gamasutra posited that "all 3D RPG titles from Morrowind to World of Warcraft share Ultima Underworld as a common ancestor, both graphically and spiritually ... [and] for better or for worse, Underworld moved the text-based RPG out of the realm of imagination and into the third dimension". Its soundtrack, composed by George "The Fat Man" Sanger and Dave Govett, was the first in a major first-person game to use a dynamic music system; the player's actions alter the game's music.Ultima Underworld is considered the first example of an immersive sim, a genre that combines elements from other genres to create a game with strong player agency and emergent gameplay, and has influenced many games since its release. The game's influence has been found in BioShock (2007), and that game's designer, Ken Levine, has stated that "all the things that I wanted to do and all the games that I ended up working on came out of the inspiration I took from [Ultima Underworld]." Gears of War designer Cliff Bleszinski also cited it as an early influence, stating that it had "far more impact on me than Doom". Other games influenced by Ultima Underworld include The Elder Scrolls: Arena, Deus Ex, Deus Ex: Invisible War, Vampire: The Masquerade – Bloodlines, and Half-Life 2. Toby Gard stated that, when designing Tomb Raider, he "was a big fan of ... Ultima Underworld and I wanted to mix that type of game with the sort of polygon characters that were just being showcased in Virtua Fighter." Ultima Underworld was also the basis for Looking Glass Technologies' later System Shock. Id Software's use of texture mapping in Catacomb 3-D, a precursor to Wolfenstein 3D, was influenced by Ultima Underworld. Conflicting accounts exist regarding the extent of this influence, however. In the book Masters of Doom, author David Kushner asserts that the