Hearthstone’s Saviors of Uldum expansion brings back Quests and the League of Explorers

Blizzard Entertainment announced today that Saviors of Uldum is the next expansion for Hearthstone. The new set of 135 cards will release on August 6.

The digital card game is the king of its genre, amassing over 100 million players since its 2014 debut. The digital card game market is expected to be worth $2 billion by 2020. Blizzard releases three expansions a year for the free-to-play game to give those fans a reason to spend more money on digital card packs. It can also help keep Hearthstone competitive against other digital card games like Magic: The Gathering Arena and the new auto chess games like Dota Underlords, which has been cutting into some of Hearthstone’s Twitch viewership.