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The LEGO Group unveiled LEGO® Hidden Side™, an augmented reality-enhanced LEGO play theme where kids must turn a haunted world back to normal, one ghost at a time. It is the only play experience available today that fully and seamlessly integrates augmented reality (AR) with physical construction to reveal a hidden world of interactive play. Developed for children 7 years and up, LEGO Hidden Side was showcased for the first time at American International Toy Fair Booth in Booth 1335 of Hall 3B at the Jacob K. Javits Convention Center, February 16 -19. 

This group of Hidden Side sets were ones that I was very excited about in the LEGO booth! I love Augmented Reality and I love the whole new element of play that this app brings with the sets. 

Activating the bespoke AR app brings LEGO models to life, revealing a hidden world of interactive mysteries and challenges to solve. When combined, the two worlds make each other even more compelling and fun!

The Story: Jack and Parker are teenage bloggers who attend Newbury High School. Through an app on their mobile phones, they can see the unseen – and in this case, Newbury is overrun with ghosts! The Building Sets LEGO Hidden Side offers 8 building sets full of awesome functionality and secret surprises that offer the build and roleplay fun of any LEGO play theme. Each model can be built as it appears by day and has transforming functionality to become the haunted version of itself. 

The AR App Kids assume a first-person perspective to join the lead characters, using their mobile phones to see and solve paranormal mysteries beneath the surface of their town. By holding their phones up to a physical LEGO model, “points of possession” are activated, releasing virtual ghosts that kids must then capture to stop the haunting. Kids must keep one hand in each world – physical and digital – to progress the play. A short digital game can be played independent of the building sets. The app will add new ghosts, game challenges, and randomization of gameplay to keep kids coming back to their models. 

Sets Available Summer 2019

• 70418 Lab [placeholder] 174 pieces, $19.99 (USD) 
• 70419 Boat [placeholder] 310 pieces, $29.99 (USD) 
• 70420 Graveyard [placeholder] 335 pieces, $29.99 (USD) 
• 70421 Truck [placeholder] 428 pieces, $39.99 (USD) 
• 70422 Diner [placeholder] 579 pieces, $49.99 (USD) 
• 70423 Bus [placeholder] 689 pieces, $59.99 (USD) 
• 70424 Train [placeholder] 698 pieces, $89.99 (USD) 
• 70425 School [placeholder] 1,474 pieces, $129.99 (USD) 

Check out the video demo of how the Augmented Reality works with the sets, from Brothers Brick.

Specs: free download from the App Store and Google Play for iOS 6S and up and Android phones on the ARCore supported list. App works on tablets, however, the play experience is designed with phones in mind to facilitate kids’ ability to play with one hand in each world, which is easier to do with a phone. Ages 7 and up. Available globally in late summer 2019. 

For more information, visit