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Lego Hidden Side

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Play OverviewPlay Overview

Lego Hidden Side (2019) is a (discontinued) adventure game you play by building physical Lego kits and then interacting with them via an augmented reality app on your Smartphone. The app was discontinued in early 2023 reducing existing Lego Hidden Side sets to just physical play. Previously, as explained below, after building you could put the kits on the app camera and see them come to life on the screen with a narrative and a range of characters and mysteries to solve.

There are a wide range of sets for different prices, as well as individual figures to collect. Each one opens and unlocks new content on the Lego Hidden Side app. This offers not only an initial novelty but new content, challenges and adventures throughout the year.

You interact with the sets by moving and manipulating colour-coded sections of the models. As you do you rouse angry poltergeists or get the unwanted attention of large monsters hiding inside each set. If you manage to solve these mysteries and defeat enemies, you unlock new challenges.

The kits themselves are well-designed Lego creations that reminded us of Stranger Things, with a combination of hipster and light horror. The addition of the smartphone play does mean that even the smaller kits that are built quite quickly still have considerable interaction value, beyond the usual imaginative play.

Our examiner, Jo Robertson, first checked Lego Hidden Side 3 years ago. It was re-examined by Ellen Robertson and updated 4 months ago.
There are lots of games similar to Lego Hidden Side. Here are some we picked for you:

Play StylePlay Style

This is an Adventure and Physically Active game with Creative, Narrative and Puzzle elements. You can play with 1 to 4 players in the same room, but you can’t play it online. Multiplayer mode was added in an update and has one player as the ghost hunter while up to three friends play as ghosts. The ghost players can move their characters around hiding in different locations that the ghost hunter can see on their screen.

You can play this game in the following styles:


Play Time: It takes between 5 minutes and 15 minutes to play a round of this game. Missions take a few minutes but are strung together in rounds. Of course, the building aspect of the game takes longer.

Age RatingsAge Ratings

Content Rating

This game has been rated PEGI 3.

Skill Level

10+ year-olds usually have the required skill to enjoy this game.


There are no additional in-game purchases, loot boxes, adverts or subscription costs.
The App is free, but of course, the Lego sets cost money:
  • Newbury Haunted High School - £109.99
  • Mystery Castle - £89.99
  • Phantom Fire Truck 3000 - £59.99
  • Paranormal Intercept Bus 3000 - £54.99
  • Haunted Fairground - £44.99
  • The Lighthouse of Darkness - £44.99
  • Newbury Abandoned Prison - £34.99
  • El Fuego's Stunt Plane - £24.99
  • Newbury Subway - £24.99
  • Supernatural Race Car - £24.99
  • Wrecked Shrimp Boat - £24.99
  • J.B.'s Submarine - £17.99
  • Jack's Beach Buggy - £17.99
  • Welcome to the Hidden Side - £17.99 

DetailsGame Details

Release Date: 18/08/2019

Out Now: Android and iOS

Skill Rating: 10+ year-olds

Players: 1-4

Genres: Adventure, Physically Active (Creative, Narrative and Puzzle)

Accessibility: 0 features documented (Tweet Developer )

Components: 2D Side-On and Blocks

Developer: LEGO Group (@LEGO_Group)

Taming Gaming Book Written by parents for parents, the database complements the in-depth discussion about video game addiction, violence, spending and online safety in the Taming Gaming book. We are an editorially independent, free resource without adverts that is supported by partnerships.

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