Finish Warcraft II: Tides of Darkness

The 1994 original: two campaigns in Azeroth, mouse-driven, before anybody had heard of the setting.

Twelve missions a side on Draenor, with named heroes who stay dead if you lose them.

Heroes, four races and the custom map that became DotA; Blizzard's RTS peak.

Arthas becomes the Lich King, and the custom maps become DotA.

Terran, Zerg and Protoss in perfect balance; the national sport of South Korea.

Tesla coils, Tanya and full-motion video generals; Westwood's alternate Cold War.

Harvest spice, build a base, click and drag; the game that defined the real-time strategy.

The 1997 original: twelve ancient civilisations, from the Stone Age to the Iron Age.