British text-adventure game company, founded by the Austin brothers (Pete, Mike and Nick) in 1981. Level 9 produced about twenty text adventures from 1981-1991, and thus was the major supplier of interactive fiction for British microcomputers. As was the case with Adventure International and Infocom, Level 9's early success was due in large part to its creation of a development system that produced highly portable game files.
- Level 9 Memorial at IF-Legends.
- Level 9, The Lords of Adventure: 1, 2, 3 - article published in Amstrad Action #8, May 1986.