Finish Warcraft III: The Frozen Throne

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.

Orcs and humans at sea and in the air; the RTS that made Blizzard.

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

The Dark Portal opens onto Outland, blood elves and draenei join, and Illidan waits at the top of the Black Temple.

Northrend, the death knight as a playable class, and Arthas on the Frozen Throne at the top of Icecrown.

Deathwing rips the old world apart, so every zone from 2004 is rebuilt around the damage.

Pandaria opens after ten thousand years, with the monk class, a farm at Halfhill and a war the Horde loses to itself.