Dennis Noordsij is a level designer and modder. He was active with the community for most of 1996, but stopped designing files after the release of MultiSkin 1.1 on August 1, 1996.
Noordsij continued to be active in the community for a period of time after he finished making mods, often updating his own news site with various information. One of the last posts he made was on Add-ons. He felt that removing the original documentation would be a horrible act, since it implied the commercial Add-on was made with their own content. He felt the existence of Add-ons was beneficial however, since there were many people without an internet connection that could not get files without one of these CDs.
Dennis disappeared from the community on October 9, 1996.