If you’re a fan of LEGO and mechs, then you may notice that LEGO mechs have been around for a long time and have always been popular among fans. But if you’re looking for the largest LEGO mech builds, then stay tuned because I’ve compiled a list of 21 of the biggest and most impressive ones you can add to your collection today. These builds range from towering titans from LEGO Monkie Kid to agile combat machines from LEGO Ninjago, each with its own unique style and design.
Tracing back the roots of these largest LEGO mech builds or sets goes way back to the time of LEGO classic themes. When LEGO launched its LEGO Space theme and introduced our very first Cybernaut (6951: Robot Command Center) made of LEGO in 1984, brick-built robots became a staple across LEGO themes and sets. And if you’re a fan of LEGO mechs, then you have probably noticed that the past 5-7 years have seen a steady increase in the number of these largest LEGO mech sets. Simply put, there are a ton of amazing mech builds out there that you can add to your collection today.
LEGO bricks have always been associated with wonder and creativity, and the introduction of this largest LEGO mech sets into the mix (as far as minifigures are concerned) has taken it to a whole new level. With the ability to create complex, articulated figures with hundreds of LEGO pieces, the possibilities are virtually endless.
And in case you’re wondering where we are right now in terms of LEGO mechs, you may also notice that the majority of these official LEGO mech sets are coming from homegrown themes such as LEGO Ninjago and LEGO Monkie Kid, and licensed ones such as LEGO Marvel Superheroes. As a rule of thumb, I only considered those sets with more than a 700-piece count in this listing of the largest LEGO mech builds around. Most of these are still available at LEGO.com and Amazon, so if you’re interested to add them to your LEGO mech collection, then you may also click on their respective affiliate links below.
With that out of the way, let’s dive in and check this out.
LEGO Ninjago Dawn of Iron Doom (70626)
704 pieces | Minifigures include Jay, Lloyd, Wu Sensei, Krux, Acronix, and Commander Blunck | Released: January 2017 | Available via Amazon
The LEGO Movie Emmet’s Construct-o-Mech (70814)
708 pieces | Minifigures include Emmet, Unikitty (Angry Kitty), and Robo Skeletons | Released: June 2014 | Available via Amazon
LEGO Jurrasic World T. rex vs Dino-Mech Battle (75938)
716 pieces | Minifigures include Owen Grady, Claire Dearing, Danny Nedermeyer, Vic Hoskins, T.rex, and Baby Raptors figures | Released: June 2019 | Available via Amazon
The LEGO Ninjago Movie Garma Mecha Man (70613)
747 pieces | Minifigures include Lloyd, Shark Army Great White, Lord Garmadon, and Pat | Released August 2017 | Available via Amazon
LEGO Ninjago Titan Mech Battle (70737)
754 pieces | Minifigures include Zane, Jay, Samurai X (Nya), Scythe Master Ghoultar, and Blade Master Bansha | Released June 2015 | Available via Amazon
LEGO Ninjago Jay’s Titan Mech (71785)
794 pieces | Minifigures include Jay, Nya, Pixal Bot, Bone Knight, Bone Hunter, and Bone King | Released January 2023 | Available via LEGO.com and Amazon
LEGO Ninjago Zane’s Titan Mech Battle (71738)
840 pieces | Minifigures include Jay, Zane, and Ghosts | Released January 2021 | Available via LEGO.com and Amazon
LEGO Ninjago Lloyd’s Titan Mech (70676)
876 pieces | Minifigures include Lloyd, Zane, General Vex, Blizzard Warrior, Blizzard Archer, and Blizzard Sword Master | Released June 2019 | Available via Amazon
LEGO Monkie Kid Evil Macaque’s Mech (80033)
893 pieces | Minifigures include Monkie Kid, Mei, Sandy, Savage, and Evil Macaque | Released January 2022 | Available via LEGO.com
The LEGO Ninjago Movie Fire Mech (70615)
944 pieces | Minifigures include Kai, Zane, Lauren, Henry, Jelly, and Hammer Head | Released August 2017 | Available via Amazon
LEGO Ninjago Fire Stone Mech (71720)
968 pieces | Minifigures include Kai, Cole, Nya, Munce, and Moe | Released June 2020 | Available via Amazon
LEGO Ninjago Nya’s Samurai X MECH (71775)
1,003 pieces | Minifigures include Jay, Samurai X (Nya), Wu Sensei, Lil’ Nelson, General Pythor, The Mechanic, Vengestone Warrior, Garmadon (Oni) | Released in June 2022 | Available via LEGO.com and Amazon
LEGO Monkie Kid Demon Bull King (80010)
1,051 pieces | Minifigures include Monkie Kid, Pigsy, and Princess Iron Fan | Released in May 2020 | Available via Amazon
LEGO Ninjago Ninja Ultra Combo Mech (71765)
1,104 pieces | Minifigures include Jay, Kai, Cole, Zane, Boa Destructor, Cobra Mechanic, and Wu Bot | Released in January 2022 | Available via LEGO.com and Amazon
The LEGO Ninjago Movie Quake Mech (70632)
1,202 pieces | Minifigures include Cole, Mike the Spike, Misako, Fred Finley, and Crusher | Released in December 2017 | Available via Amazon
LEGO Marvel Superheroes The Hulkbuster: Ultron Edition (76105)
1,363 pieces | Minifigure includes an Iron Man Mark 43 Armor | Released in March 2018 | Available via Amazon
LEGO Icons Optimus Prime (10302)
1,508 pieces | Release in June 2022 | Available via LEGO.com and Amazon.
LEGO Monkie Kid Monkey King Warrior Mech (80012)
1,629 pieces | Minifigures include Monkie Kid, Jia, An, Ironclad Henchman, General Ironclad, and Monkey King | Released in May 2020 | Available via Amazon
LEGO Monkie Kid Monkey King Ultra Mech (80045)
1,705 pieces | Minifigures include Monkie Kid, Mr. Tang, Monkey King, Yellow Tusk Elephant, Azure Lion, and the Golden-Winged Eagle | Released January 2023 | Available via LEGO.com
LEGO Ideas Voltron (21311)
2,321 pieces | Released in August 2018 | Available via Amazon
LEGO Marvel Superheroes Hulkbuster (76210)
4,049 pieces | Minifigure includes Tony Stark | Released November 2022 | Available via LEGO.com and Amazon