纪录片《免费游戏》（2014）

Valve's feature-length documentary following three professional gamers competing in the first Dota 2 International tournament for a million dollar prize. It shows the sacrifices and pressures of top-level esports.

Why HN likes it: HN recommends it as an engaging look at the life of pro Dota players and the early rise of esports, though one commenter notes it is somewhat promotional.

“I've enjoyed this documentary a lot.”