Gameplay of Hearthstone

Hearthstone is a digital collectible card game released by Blizzard Entertainment in 2014, available for Microsoft Windows and macOS PCs and iOS and Android smartphones. The game is free-to-play, with players gaining in-game currency and card packs via winning matches and completing quests, while real-world money can be spent to acquire additional card packs and cosmetic items. The game has been critically well-received and financially successful, estimated in August 2017 to earn nearly US$40 million per month.^[1] As of November 2018^[update], Blizzard has reported more than 100 million Hearthstone players.^[2] Blizzard has continued to expand the game with the addition of multiple expansions, adventures and game modes.