ADOM Central: Project home. Executables for multiple platforms, news, bug tracking, RFEs, and resource links

Crossfire - The Multiplayer Adventure Game: Project home. News, guides, resource links, and downloads

NetHack: Official site. News, guides, links, and both source and executables for several platforms

rephial.org: Official site, containing downloads, bugtracker, and a development wiki

Zangband: Official site, with downloads, news, documentation, contact information, and resources for developers