Sanity was a German-based amiga demo group, born in march of 1990 by Panther (code) and Vindicator (code and music) from Escape, and Tom (who soon after changed his name to Hawk) from Axxess. They quickly took in Cruiser, Predator, Mok and Jim to complement the team. Their first production (presumably) was the musicdisk Monthly Top Ten Gamesounds 1 in march of 1990, which announced the birth of the group.
Sanity Is Dead came out in august of 1991, and told the history of how Cruiser and Panther had decided that Sanity would be a demo-oriented group, and recently dismissed all their illegal members. This concerned among others Mike D., Mr. Pet, Ice, Bubbler, Zodiac, Gash and Kilroy. Mr. Pet and Mike D. apparently caused some trouble for the rest of the group, leading to the remaining members Panther, Vindicator, Cruiser, Hawk, Cthulhu, Jester, 16 Beat, Diddle, Chaos and Zaphod opting to declare the group dead and join Rebels. Since they were not mentioned, Predator, Mok and Jim were clearly no longer members at this time. Their stay was a short one, before they all opted to reform Sanity a few days later. R.A.W 1 (november 1991) reported that Zodiac and Hi-Lite (previously known as Bubbler) had left Sanity for Vision Factory, and that Mike D had left the group for Anarchy. The december musicdisk Turmoil contained a full memberlist, listing Chaos, Flosoft, Mr. Pet, Cougar, Cruiser, Cthulhu, Bit Arts, Jester, Diddle, The Pride and Alex - confirming that Panther, Vindicator and Hawk were no longer in the group.
Microforce, Cosmos and Zap all left Coma for Sanity in february of 1992. Chit Chat 5 (july 1992) reported Virgill joined Sanity.
In early august, the group coarranged the demoparty 680xx Convention 1993 in Hamburg, Germany. Chippy Town 1 (september 1993) reported that Ra and Moby joined from Dreamdealers.
Disney was recruited from Alcatraz in 1994, to be editor of a planned Sanity diskmagazine (source: ROM 1).