Grab your broomsticks, carve your pumpkins, and unlock the graveyard gates because Halloween is just around the corner, and there is a chilling LEGO Ideas challenge to celebrate!
The LEGO Ideas team is asking you to create a terrifying transformation in brick form (digital builds also welcome). Your bewitching build should illustrate the fantastical moment when the clock strikes midnight – and light gives way to darkness.
In this challenge, give in to gothic grandeur and embrace the eerie! Whether you choose to build a two-sided monster or ghouls that only creep out at night, honor all the freaky feelings and creepy aesthetics that come with the witching hour. Maybe you’ll create a cute car that transforms into a vulgar vehicle in the moonlight, a cuddly creature with hidden horrors, or a seemingly harmless house that comes alive at midnight – the terrifying options are truly endless!
This challenge is all about boo, sorry, you! So make sure you create something that changes when the midnight hour chimes and let your imagination run as fiendishly wild as possible.
Once you’ve perfected your marvelous mutation, using either physical LEGO bricks or a digital building tool such as BrickLink’s Studio, slither over to the LEGO Ideas contest page to submit your dreadful design. Be sure to share your kooky celebration with photos and a description of all the spine-chilling details.
It wouldn’t be Halloween without a little treat to go with all that devilish trickery! 13 unlucky builds will be selected for the fan vote phase of the contest. Instead of candy, 1 grand prize winner will take home these petrifying prizes: #21361 LEGO Ideas Gremlins: Gizmo, #21361 LEGO Ideas Mineral Collection, #21359 LEGO Ideas Italian Riviera, and #21358 LEGO Ideas Minifigure Vending Machine. The remaining 12 fan vote picks will receive the #21361 LEGO Ideas Gremlins: Gizmo set.
Submit your build by November 12th, 2025 at 6:00 AM EST. Experts will review and select up to 13 builds to move to the fan vote phase on November 24th 2025. LEGO Ideas members will be able to vote one time for their favorite build between November 24th, 2025 and December 2nd, 2025. The votes will decide the grand prize winner of the challenge. Results will be posted on LEGO Ideas no later than December 11th, 2025. For more details, and to enter the contest, visit the LEGO Ideas contest page.
If you plan to enter, have fun, and feel free to share and discuss your builds in the comment section below!
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