League of Legends, CS:GO, Dota 2, And Hearthstone Make Up 65% of Twitch Viewership

It's no surprise to learn that competitive gaming rules the Twitch airwaves. But it might be a little shocking to see just how concentrated that stranglehold might be.

According to Nicolas Cerrato, founder of French analytics company Gamoloco, 65% of all viewers on Twitch are watching just four games: League of Legends, Counter-Strike: Global Offensive, Dota 2, and Hearthstone. LoL is the clear #1, with 88 million hours watched in April 2016, though CS:GO has closed the gap considerably, rising from 39 million in April 2015 to 73 million last month. Dota 2 and Hearthstone have also seen significant leaps over the past year.

After those four, viewership is a little more mixed, and subject to short-term spikes in viewership centered around game launches. Grand Theft Auto V was #5 in April 2015, while Dark Souls III claimed that spot in April 2016, with GTA V nowhere to be found. In the #5-#10 slots, only Minecraft and World of Warcraft appear on both lists.

Cerrato lists a few other popular free-to-play games as "The Challengers," games netting one to 10 million hours' worth of viewership monthly: World of Tanks, Smite, Vainglory, and (oddly) RuneScape. Smite's got a long ways to go to catch up to its MOBA competition, clocking in at around three million hours per month, well below even Dota 2's 43 million.

You can read Cerrato's full post and see all his slides on the Gamoloco blog.