R'lyehable is a dedicated online resource for enthusiasts of tabletop role-playing and wargames, established in 1997. Serving as a collaborative wiki platform, R'lyehable encourages players and creators to share content, fostering an open community for both established and indie games. The site has faced periodic hosting changes, leading to updates and content adjustments, with the latest information last noted in April 2021.

While R'lyehable primarily functions as a repository for wargame materials, it also respects copyright and trademark laws, freely acknowledging the original creators of popular games such as Full Thrust, Warhammer 40,000, and Dungeons & Dragons among others. The site operates under a Creative Commons license, promoting non-commercial sharing and adaptation of shared resources. Whether you're a gamer seeking discussions, strategies, or information, R'lyehable remains a vital hub for comprehensive and fan-created game content.