Herzog Zwei (1989)
A Sega Genesis game by Technosoft from 1989, this relatively unknown strategy game has gone on to become monumentally significant. Its clever blend of arcade-style combat and strategic planning make it both the OG real-time strategy game – predating Westwood's Dune 2, the game widely acknowledged for popularizing the genre, by three years – and an early example of a proto-MOBA. The game saw players protecting their main base with a flying, transforming mech that they had direct control over, along with combat units – essentially creeps – that helped guard nine additional outposts placed across the battlefield. As a single-player game, the weak AI limited its appeal, but in keeping with the genres it spawned, it was most fun against a human opponent.