Herzog Zwei (1989)

Herzog Zwei is a 1989 real-time strategy game that puts two commanders against each other on a wide variety of maps and environments. Each player controls a Mech that can transform from a fighter jet to a walking bi-pedal robot. Released by Technosoft for the Sega Mega Drive/Genesis console, it is credited for pioneering the RTS and MOBA genres. It was also a precursor to the hero shooter genre.