Heroes Unlimited

Beyond Heroes - Heroes Unlimited modern and 1930s with new powers, classes, magic, the Equipment Locker, campaigns and dimensions. Gold Wyrm award.
users.chariot.net.au/~marcof/

Event Horizon 2028 - Campaign background including future history, characters, and rules variants.
www.geocities.com/eventhorizon2028/

Heroes Unlimited: S.N.A.I.L. - Details the characters and equipment of a government organization dedicated to protecting America from aliens.
www.geocities.com/Area51/Dimension/2163/hero.htm

Realm of Rikonian - New classes, settings, and abilities. Also includes rules for building robots, a project guide, and articles.
members.aol.com/Rikonian/rpg.html