Hearthstone's latest expansion, The Boomsday Project, released earlier this month, bringing with it 135 new cards, new card types, and keywords to the PC, iOS, and Android game. Now, the expansion's new single-player mode, called The Puzzle Lab, has also gone live, giving players a bunch of special challenges to complete.

　　The Boomsday Project is all about science and scientist characters, and so the premise of The Puzzle Lab revolves around players helping those scientists and their assistants overcome challenges in their research. There are four different types of challenges, with each of them escalating in difficulty as you play through them. The four challenges are:

　　You need a javascript enabled browser to watch videos.

　　Click To Unmute

　　Thompson: The Pop Culture Icon’s Strange Legacy - Loadout

　　Firearms Expert’s FAVORITE Weapons Of 2023State Of Gaming Handhelds In 2023How Lies of P Cracked the Souls GenreLike a Dragon: Infinite Wealth - Official Ichiban Kasuga Character Spotlight TrailerLike a Dragon: Infinite Wealth - Official Chitose Fujinomiya Character Spotlight TrailerLike a Dragon: Infinite Wealth - Official Saeko Mukoda Character Spotlight TrailerLike a Dragon: Infinite Wealth - Official Eric Tomizawa Character Spotlight TrailerLike a Dragon: Infinite Wealth - Official Kazuma Kiryu Character Spotlight TrailerLike a Dragon: Infinite Wealth - Official Seonhee Character Spotlight TrailerLike a Dragon: Infinite Wealth - Official Koichi Adachi Character Spotlight TrailerLike a Dragon: Infinite Wealth - Official Yu Nanba Character Spotlight Trailer

　　Share

　　LinkEmbed

　　Size:640 × 360480 × 270

　　Start at: End at: Autoplay Loop

　　Want us to remember this setting for all your devices?

　　Sign up or Sign in now!

　　Please use a html5 video capable browser to watch videos.

　　This video has an invalid file format.

　　00:00:00

　　HTML5

　　Auto HD High Low

　　Report a problem

　　Sorry, but you can't access this content!

Please enter your date of birth to view this video

　　By clicking 'enter', you agree to GameSpot's

　　Terms of Use and Privacy Policy

　　enter

　　Now Playing: Blizzard Reveals Shrink Ray! Hearthstone Card Reveal For The Boomsday Project Expansion

　　Board Clear: Defeat all minions on the battlefieldLethal: Defeat the enemy hero in one turnMirror: Copy your enemy's board, mirroring the position of minions, attributes, and moreSurvival: Survive the Hero Power of your opponentGallery

　　For a limited time, players who log-in will receive three free The Boomsday Project card packs for free, and you can check out our full gallery to see every new card in the expansion. The story goes that the dastardly Dr. Boom has assembled a team of nine class-based scientists to manage their own wild experiments, to disastrous results. The nine scientists make up the class-specific Legendary cards for this expansion.

　　The Boomsday Project introduces Legendary spells for the first time, which have big and unique effects. There's another new spell type, Projects, which cause the same effect on both players. The challenge is to best take advantage of these effects (something that proved especially difficult to play-test).

　　New Omega cards will also be playable throughout a game, but are now being given extra power boosts if played after reaching 10 Mana. Lastly, there's a new Magnetic keyword that allows you to join Mechs together, inheriting their stats, keywords, and special abilities. In other Hearthstone news, read how the game's most problematic game mechanic likely won't be coming back any time soon.