StarCraft II is one of the most popular real-time strategy games. Each player chooses a race before embarking on a 1v1 sci-fi battle with their opponent.
They can click around the map to build workshops and other buildings, train infantry, deploy tanks and other vehicles to attack the enemy.
The idea of the game is to build and command an army, and to destroy the enemy base.
StarCraft II esports became a real hit in Asia, where some top-level players have been known to make up to 500 or 600 actions per minute.
Typical game length: 30-45mins
Genre: Real-time strategy
Price: Around £20 (with additional expansions costing around £30)
Publisher: Blizzard Entertainment
Notable tournaments: World Championship Series, IEM
Popularity: No official figures recently released by Blizzard
Twitch: 3.8m hours watched in October 2016 across all viewers
Launched: July 2010
Pegi age rating: 16
Other Pegi info: Realistic looking violence