Hearthstone – The Puzzle Labs Single Player Campaign Enters The Boomsday Project

Hearthstone’s latest expansion, The Boomsday Project, has been live for a bit now, but without its single-player campaign. But that’s all changed as of today now that The Puzzle Labs has been deployed. Players are given scenarios and cards to work through these puzzles, designed around four specific mechanics: Lethal, Mirror, Board Clear, and Survival.