From IFWiki

CASA, the Classic Adventures Solution Archive, is a website dedicated to 8-bit and 16-bit text adventures and interactive fiction. The site was created in 1999 as a resource for solutions, maps and hints. In 2010, the site was expanded to be a database for adventure game information as well. As of this writing (March 2022), the site covers well over 9,000 games.

The main focus is on games for the popular 8-bit computers such as Spectrum, Commodore 64, Amstrad CPC and Apple II, but the entire range of 8-bit, 16-bit, and 32-bit micros is covered (BBC Micro, Amiga, TRS-80, Dragon etc.). Modern IF is covered to a limited extent.

Apart from solutions, maps, hints, and game information, there are also manuals, interviews, articles and a forum.

CASA was created in 1999 by Jacob Gunness. Today the site is run by him and a number of other people.