LEGO Contest Round-Up for December 2025
December has snuck up on us, Christmas decorations are up and illuminating the nights, and hot coco has entered the LEGO rooms. Time to snuggle up with a blanket and build some new MOCs! Here’s the latest bunch of LEGO contests and challenges from all around the AFOL community for November 2025 to help you find some inspiration and motivation to build! There’s nothing quite like a theme or a prompt to take you out of your comfort zone and give you something new to try. Besides, contests are the perfect place to interact with other contestants and judges and get to know your fellow builders.
We’ve listed them in order of deadline so you can plan your building time to the best advantage. Make sure to check the LEGO activity calendar for local challenges and events near you. Here at BrickNerd, some of our fondest memories, greatest building achievements, coolest trophies, and best friendships came from LEGO contests, so we really hope you try some of these out. We look forward to seeing what you build!
BDP Series 7 Mini-Build Competition
The Series 7 BDP sets are soon going to be available for pre-order – time to celebrate them with mini builds!
Deadline: December 10th
Prizes: Five winners will receive the model that their mini build represents (one per Series 7 model) + badges
Where to enter: BrickLink
More Details
City Life Creations: Design a Vendor Cart
Celebrate the bustling city life by creating a whimsical street vendor stand – and the grand prize is getting your creation turned into a LEGO set!
Deadline: December 10th
Prizes: 1 Grand Prize winner will have their submission turned into a LEGO set along with receiving complimentary copies + 10350 Tudor corner; up to 14 winners will receive 60649 Central Train Station, 10362 French Café, 60404 Burger Truck & 60452 Donut Truck
Where to enter: LEGO Ideas
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Brick Sculpt Winter LEGO Challenge
Five categories and a separate one for kids 14 years and younger invite you to build Winter themed LEGO builds – and digital entries are accepted, too!
Deadline: December 22nd
Prizes: Just the fun of building with LEGO!
Where to enter: Discord or via email
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It’s the most wonderful time of the year: It’s Holiday Habitat time! Celebrate your favorite holiday with a habitat stack and have fun building!
Deadline: December 23rd
Prize: Just the fun of building with LEGO!
Where to enter: Instagram
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BrickCentral: The Magic of the Season
Take some heartwarming pictures of holiday magic – a visit to a Christmas market, a family gathering, or even Santa and his elves preparing for the season!
Deadline: December 29th
Prizes: Just the fun of building with LEGO!
Where to enter: Threads & Discord
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It's that time of the year again! Our favorite season is back, and it’s got nothing to do with vacations. It’s time for the annual heart MOC build to give campaign!
Since 2017, builders all around the world have helped the LEGO Group donate millions of LEGO® sets to children around the world, spreading the superpower of play to those in need.
Deadline: December 31st
Prizes: When you build and share a heart with the hashtag #BuildToGive, the LEGO Group will make a donation through their awesome partners who give out sets in hospitals, care homes, vulnerable communities, and beyond – covering over 25 countries!
Where to enter: Your social media of choice
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Umbasa LUGs monthly minifigure challenge is asking for your mightiest and chilliest warriors!
Deadline: December 31st
Prizes: Just the fun of building with LEGO!
Where to enter: Instagram
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The Colossal Castle Contest has returned! Six diverse categories invite castle builders to throw their hat into the ring for the prestigious CCC Master Builder!
Deadline: January 4th
Prize: LEGO gift cards ranging from 25USD to 75USD
Where to enter: Classic-castle.com
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Nerdvember 2025: Vacation Edition
Our very own Nerdvember returns, and this time we are sending Nerdly on holiday! Whether it’s a weekend getaway or a once-in-a-lifetime adventure, we hope you’ll have a fun time with the two very different categories you can enter!
Deadline: January 4th
Prize: First prize winners will receive a 200USD set of their choosing, a shiny Golden Nerdly trophy and a BrickNerd swag box; second and third places will receive a 100USD and 50USD set, respectively.
Where to enter: BrickNerd
More Details
Do you have what it takes to be a Dragonslayer? Do you deserve a place at the round table with some of the best medieval builders out there? Six categories and three additional challenges await your entries – you can even enter digital builds!
Deadline: January 15th
Prize: Each category offers a choice between a LEGO set and a custom-built prize that will be unveiled during the first weeks of Brickscalibur.
Where to enter: Discord or the Brickscalibur website
More DetailsHappy building! See you here next month for our next LEGO community contest list. And if you would like us to add a contest, please email [email protected].
What are your experiences with LEGO contests? Are there any you know of that we missed? Leave your thoughts in the comments below.
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