The three playable houses in each campaign are replaced with Mercenary (yellow), Sardaukar (purple) and Fremen (orange). The original houses still appear sometimes as enemies. The new campaigns are more difficult than the original and meant for experienced players. Each new house has different characteristics, notably the Fremen can control the sandworms. Another updated version of Super Dune 2, named OpenSuperDune, is included in Dune Legacy.