Onslaught Antiques ([OA], 2001-, http://www.onslaught-antiques.org)
OA is a retro-cracking group formed in february of 2001, dedicated to releasing 'perfect' versions of classic games, fixing bugs, shorting the crack etc. They are reportedly seven members, none of which are members of the 'other' Onslaught, and none of who are disclosing their names. Their releases can be downloaded from their website. They also have an official email, firstname.lastname@example.org.