Twitch channel pgg has been streaming Dota 2 the most in 2015 having streamed in 1438 hours so far with 3,924 average viewers and 3,924 highest concurrent viewers.
pgg also streamed the game Hearthstone: Heroes of Warcraft second most in 2015 for 115 hours and had 454 average viewers while playing it. pgg
also had 454 highest concurrent viewers playing Hearthstone: Heroes of Warcraft.
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