Emperor is the second Dune game developed by both Westwood Studios and Intelligent Games. Westwood broke new ground with Emperor and went 3D, it was their first true 3D RTS. Other advancements included a new type of campaign mode which let you play online in groups of up to 3 players. Emperor is a sequel to Dune2 & Dune 2000 including an entirely new storyline created by Westwood.