Hmm... played AD&D when it was only issued as a paperback so I think that was late 70's
Played Runequest which was different in so far as it introduced hit locations, but involved swords and magic.
Star Fleet Battles - and the associated expansions.
Top Secret - who would not want to be James Bond?
Paranoia (which was always funny and usually ended with pretty much every body dying and being shot at by one another), a little bit of Call of Cthulu, Traveler and Champions (the first edition).
Champions was always good - nothing like rolling 16d6 damage and adding them all up!