Introversion: Uplink: Official site. Offers background, news, FAQ, screen shots, downloadable patches and discussion forums

RollerCoaster Tycoon 3: Official site offers technical information, game features, screenshots, a ride exchange, and scenario and patch downloads. Also had a discussion forum and support information

The Creatures Wiki: Creatures encyclopedia maintained by community members

There.com: Online chat community featuring virtual worlds inhabited by 3-D avatars. Features contests, item auctions, discussion forum, and information for developers

TrainSim.Com: Downloads, software news, Trainmaster and Microsoft Train Simulator forums plus general rail news

Trainz: Official site. Offers news, information, screenshots, FAQs, downloads, forum, chat, and links

World of Tanks: Official website for the game. Includes the downloadable game client, a newcomers guide, game news, screenshots, videos, artwork and community section

X-Plane.com: Official developer's website. Includes information, game demo and downloads

X-Plane.org: An active community site containing a store, forum, a wide selection of downloads and game information including tutorials