The LEGO Alien Conquest series is a thrilling sci-fi adventure brought to life with bricks and imagination. Originally launched in 2011, this now-retired LEGO theme captured the hearts of kids and collectors alike with its dynamic sets, bold alien designs, and Earth-defense storyline. Whether you’re a nostalgic fan or a new collector discovering the theme, Alien Conquest is an out-of-this-world addition to any LEGO collection.
In this article, we’ll dive deep into what made Alien Conquest LEGO so unique, the must-have sets, storyline highlights, and where you can find these classic builds today.
What Is LEGO Alien Conquest?
LEGO Alien Conquest was a short-lived but beloved theme released as part of LEGO’s action lineup. Set in a world where aliens are invading Earth, the theme features an elite human defense force called the Alien Defense Unit (ADU) battling high-tech extraterrestrial invaders.
Key Features of the Theme
- Sci-fi aesthetic inspired by 1950s alien invasion movies
- Bright green alien minifigures with unique heads and accessories
- Futuristic vehicles for both aliens and humans
- Play-driven scenarios featuring captures, escapes, and epic battles
The theme struck a balance between humor and action, making it appealing for younger builders while offering unique pieces and storytelling potential for older fans.
Iconic Alien Conquest LEGO Sets
Let’s break down some of the standout sets that defined this quirky and beloved theme.
1. LEGO 7066 Earth Defense HQ
This flagship set of the series is essentially a mobile command center for the ADU.
Key highlights:
- Large truck base with detachable lab and vehicles
- Radar dishes, weapon turrets, and prison pods
- Comes with multiple ADU agents and alien figures
- Excellent for imaginative play and display
2. LEGO 7051 Tripod Invader
A nod to classic alien tripod walkers from movies like War of the Worlds, this set is a fan favorite.
Features include:
- Tall, posable tripod with a laser cannon
- Alien figure with a brain helmet
- Human civilian minifigure for classic “abduction” scenes
- Detachable abduction pod
3. LEGO 7052 UFO Abduction
Another iconic entry that encapsulates the theme’s humor and style.
Details:
- UFO with spinning function and tractor beam
- Farmer minifigure with a terrified expression
- Alien with sci-fi weapon
- Includes a cow — a fun and rare LEGO animal at the time
These sets combined storytelling with unique builds, making them perfect for roleplaying scenarios straight out of a comic book.
The Storyline: A Retro Sci-Fi Epic
What made Alien Conquest stand out wasn’t just the sets—it was the narrative behind them. The theme’s unofficial storyline involved a sudden alien invasion where humanity’s only hope rested with the elite Alien Defense Unit. Armed with experimental tech and bravery, the ADU fought to repel alien forces, rescue abducted civilians, and defend Earth’s major cities.
The aliens, meanwhile, came equipped with mind control devices, abduction beams, and organic-style ships. Many fans loved the callback to pulp sci-fi stories, with a humorous twist in true LEGO fashion.
Collectibility and Legacy
Although LEGO Alien Conquest was discontinued after just one year, it left a lasting impact.
Why It’s Still Popular
- Unique Minifigures: The alien designs remain some of the most distinct in LEGO history.
- Playability: The combination of vehicles, buildings, and story elements made for highly interactive sets.
- Collectible Value: Some sets, like Earth Defense HQ, are now considered collectibles and command high resale prices.
You can still find Alien Conquest LEGO sets on resale platforms like eBay, BrickLink, or through private LEGO collector groups on social media.
Tips for Building an Alien Conquest Display
Want to recreate the battle for Earth? Here are some fun ideas:
- Cityscape setup with aliens attacking buildings and ADU forces responding
- Use LED lights to create glowing tractor beams or lasers
- Combine with other LEGO themes like City or Space Police for cross-theme storytelling
- Create custom ADU minifigures using modern LEGO pieces
A creative display can bring the Alien Conquest saga to life in stunning detail.
Where to Buy Alien Conquest LEGO Sets Today
Since these sets are retired, here’s where you can still track them down:
- eBay – A good source for complete or sealed sets
- BrickLink – Ideal for buying specific parts or minifigures
- Facebook Marketplace – Occasionally has local listings
- LEGO Conventions and Fan Events – Great for rare finds and trades
Pro Tip: If you’re just starting out, look for sets with multiple minifigs and vehicles to maximize your collection’s playability and value.
Final Thoughts: Alien Conquest Is Still Out There
While LEGO Alien Conquest was only around for a short time, it made a big impact. With its vibrant designs, fun storytelling, and classic sci-fi inspiration, it continues to be a beloved theme for many fans.
Whether you’re looking to relive a nostalgic favorite or explore it for the first time, Alien Conquest is a must-have for LEGO enthusiasts who love action-packed adventures.
Yara Bryant is a contributing writer at Oxford Brick Art, where she shares her passion for LEGO creativity, design, and storytelling. With a keen eye for detail and a love for brick-based artistry, Yara explores the endless possibilities of LEGO, inspiring builders of all levels to think outside the brick.
