Hearthstone just exploded with the launch of The Puzzle Lab, which is a single-player adventure mode for The Boomsday Project expansion.
This release also grants Hearthstone players three free card packs from Hearthstone.
While touring the Boom Labs, players must use their wits and battle through several puzzles, which include Lethal, Mirror, Board Clear, and Survival as different modes. The difficulty of these puzzles will also increase as players progress in each stage.
If players manage to solve all the puzzles, then they will be rewarded with a special Hearthstone card back.
