Interplay is a game developer and publisher which is still active today. Their list of game series (developed and/or published) includes the Battle Chess series, the Fallout series, the Descent series, the Star Trek series, and many others.
Games developed and/or published by Interplay Entertainment
Descent II (1996)
Lost Vikings, The (1993)
Castles II: Siege & Conquest (1992)
Mario Teaches Typing (1992)