Blizzard’s Hearthstone is one of the company’s more unusual creations. A digital representation of a physical card game, based on a venerable MMORPG, itself based on a real-time-strategy game (based on the Warhammer universe, but we don’t talk about that). Sanding the edges off of Collectible Card Games (CCGs) like Magic: The Gathering proved to be a big hit, and many of Hearthstone‘s most ardent fans have probably never played any of the games that led to its creation.
All CCGs eventually need new expansions to keep the game from becoming stale, and Blizzard has reliably added about three every year since Hearthstone‘s inception in 2014. The newest expansion, The Boomsday Project, adds 135 cards as well as a new single-player campaign. But is that enough to elevate it above some of its predecessors?
Source: Destructoid Review: Hearthstone: The Boomsday Project