Coming this July, The International 4 will be the biggest and most lucrative e-sports tournament the world’s ever witnessed. The annual Dota 2 championship already surpassed all previous records when its prize pool crossed the $6 million mark in May, but fans have kept adding to the chest of treasure, which has now grown to over $10 million. That number is more than three times the last high water mark for e-sports — the previous year’s International fell just shy of $3 million — and compares favorably to the more established professional sports leagues like the NFL.