Complex sentence: In 1983, Fargo founded Interplay Productions prior to landing his first contract in 1983 with Activision for "Mindshadow", a graphic text adventure game for the Apple II and Commodore 64.
Split into simpler sentences: In 1983, Fargo founded Interplay Productions prior to landing his first game contract in 1983 with Activision. The game he created, "Mindshadow", a graphic text adventure game for the Apple II and Commodore 64.