LEGO Contest Round-Up for December 2023

[Our current monthly LEGO contest round-up can be found here.]

A new month is upon us which means more competitive building! Are you ready? Here’s the latest batch of LEGO contests and challenges from all around the AFOL community for December 2023 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. And if you’re like me, a deadline helps make sure you actually finish!

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!


We’re celebrating a huge milestone: 15 Years of LEGO Ideas! With millions of members and over 50 sets released, we need to celebrate. In style!

Show us what LEGO Ideas means to you in brick-built form. It could be absolutely anything, however, it must include the number 15 somewhere in your model.

Deadline: December 5th (6:00 am EST)

Prize: Grand Prize Winner will receive a 3-day 2-night trip for two people to Billund, Denmark with activities and tours including two spots on the LEGO Fan Tour (The Billund LEGO factory, Ole Kirk Kristiansen’s home, The LEGO House, LEGO Campus tour, Lunch and "Meet and Greet" with the LEGO Ideas team) and 15 different LEGO Ideas sets including 21338 A-Frame Cabin, 21339 BTS Dynamite, 21340 Tales of the Space Age, 21341: Disney Hocus Pocus: The Sanderson Sisters' Cottage, 21342 The Insect Collection and 21343 Viking Village and a custom-built trophy

Two runner-ups will also receive 15 Ideas sets and a custom-built trophy!

Where to enter: LEGO Ideas


For every heart built and shared, the LEGO Group will donate one LEGO set to a child in need. Grab any bricks you can and get building. It doesn’t matter if your heart is a traditional heart shape or anatomically correct—all hearts are accepted.

Deadline: December 20th

Prize: Help give children in hospitals, children’s homes, and vulnerable communities a chance to play this holiday season!

Where to enter: LEGO Ideas


Share your best LEGO photos of the year this December! We want to see your two favorite shots and to hear about what makes them so special!

Deadline: December 28th

Prize: Just the fun of LEGO!

Where to enter: BrickCentral Discord


With another quarter of the year coming up, the next Rebrickable quarterly competition should be right around the corner!

Deadline: December 31st

Prize: TBA

Where to enter: Rebrickable


It's getting chilly as winter sets in, and what better way to stay warm than to break out the bricks and do some building!

Until January 1st, you will have a chance to build your idea of the perfect Christmas Scene. A cozy log cabin in the woods? A family ski trip MOC? A build featuring your idea of the perfect Christmas gift? Go for it! Make sure to check out the Facebook post for all the details! There is a 16x16 size limit and you must include some EclipseGrafx or BrickWarriors pieces somewhere in the build.

Deadline: January 1st

Prize: There will be one winner and one runner-up, both of whom will receive generous prizes from Eclipsegrafx and BrickWarriors.

Where to enter: Discord


The Colossal Castle Contest is back! Join the fun with one of the longest-running LEGO contests out there with six categories (and prizes) to stimulate those creative juices.

Deadline: January 3rd

Prize: Lots of sets so check out all the great prizes on Classic-castle.com.

Where to enter: Classic-castle.com


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? Then come on and start snapping those bricks together! Brickscalibur has returned with six epic medieval categories (and one extra category just for digital builders).

Deadline: January 15th

Prize: First and second prizes (including sets and custom trophies) for each of the six categories (including one digital-only category), first for both members of the collab category, and 21343 Viking Village for the overall winner.

Where to enter: Discord or the Brickscalibur website


The guilds are in a period of relative peace and stability, and commerce is flourishing. From massive cities to remote settlements, caravans and shipping routes bustle with goods from every guild, so build a trading post where your guild's unique wares can be bought and sold!

Deadline: January 15th

Prize: First place will receive the 21343 Viking Village, second place will win 40657 Dream Village, and a randomly selected participant will win four LEGO castle minifigures.

Where to enter: Eurobricks


Space Jam is back! Show off your Sci-Fi building skills with six epic categories and push your limits to beyond outer space!

Deadline: January 31st

Prize: There are over $600 worth of great prizes to give away across the six categories, so you won't want to miss out!

Where to enter: Flickr or Instagram and Discord


Happy 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 dave@bricknerd.com.


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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