Choose a line by the builder's age

Ages are read from each box. Sets without an age on the listing are left out of the count, so the numbers are smaller than the shelves themselves.

From a pocket build to a weekend project

Ten of the most-rated sets across the lines, ordered by piece count. The bar shows how far each one is from the biggest build on the list; pieces and ages come from the box.

From a pocket build to a weekend project
SetPiecesLineAgesRatingPriceBuy
Green Rhaegal dragon build beside resealable dragon eggGame of Thrones Rhaegal Dragon, 30 Pieces30Video games16+4.7★ (1,748)$12.99
WWII shipping container armory with weapons rack and two soldiersCall of Duty WWII Armory, 76 Pieces76Call of DutySee listing4.7★ (958)$39.99
Blue Big Building Bag with colorful toddler blocksFirst Builders Big Building Bag, 80 Pieces80MEGA Bloks1+4.8★ (132,172)$14.97
Magnext magnetic race car building set with four vehicle optionsMagnext 4-in-1 Mag-Racers, 81 Pieces81Construx kits6+4.5★ (284)$42.98
Battle Ram vehicle with Sky Sled and two figuresMasters of the Universe Battle Ram and Sky Sled188Masters of the Universe8+4.8★ (2,276)$14.21
Four inch Squirtle with water battle effectsPokémon Build & Show Squirtle, 199 Pieces199Pokémon6+4.7★ (14,982)$22.99
Banished Banshee on display rod with Spartan ReconHalo Infinite Banshee Breakout218Halo8+4.8★ (2,807)$78.79
Pink Barbie convertible next to an ice cream standBarbie Convertible and Ice Cream Stand, 226 Pieces226Barbie & dolls6+4.6★ (346)$34.00
Rodger Dodger muscle car and Hot Wheels monster truck buildsHot Wheels Rodger Dodger and Racing Monster Truck251Hot Wheels5+4.6★ (782)$35.49
Buildable Kong figure with axe beside waterfallGodzilla x Kong Buildable Kong, 541 Pieces541Movies & TV13+4.7★ (3,430)$39.99

How a MEGA set goes together

The routine we follow at the build table, whatever the franchise on the box.

  1. Open one numbered bag at a time

    Bigger sets split their pieces into bags that match the booklet. Opening them in order keeps the table clear and the small parts where you can see them.

  2. Sort before you click

    Spread each bag on a tray and group pieces by colour and size. A minute of sorting saves ten minutes of hunting for the one grey connector.

  3. Follow the booklet page by page

    Each step shows only the new pieces in that spread. Check the count in the corner of the panel before turning the page.

  4. Finish with the figures and stickers

    Pose the micro action figures last and apply stickers with dry fingers, starting from one edge so no bubble gets trapped.

What builders tell us

Super fun and easy to build.

Bought this for a 10 year old and they put it together so quick. Super cute and fun gift. Does run small

Charmander mini brick figure with Poké Ball 4.0 out of 54.0Kenia Rojo-Mamo · May 26, 2024
Evergreen Charmander Poké Ball Set

Great set, and let me tell you why

This ghost set is a perfect representation of the halo infinite banished ghost, and I think it looks spot on, it includes a brute warrior in silver armor with only one shoulder pad and leg pad, his shoulder pad is red and is the same mold as their escheraum figure, the grunt conscript is nice and he has red armor, it is the same grunt body mold as the halo reach ones, the grunt imperial is great with also…

Halo Infinite Ghost with Spartan Anubis and Brute 5.0 out of 55.0Nicole Hopper · July 24, 2022
Halo Infinite Hijacked Ghost

Great set

Excellent set with amazing detail. Purchased this for my dad because he is a hardcore Beatles fan. He looked like a kid at Christmas while he was setting it up. He was very happy to add this to his collection.

The Beatles on Arrows stage with LED lights 5.0 out of 55.0JeffPorcaroFan · November 26, 2025
The Beatles Ed Sullivan Stage, 681 Pieces

Great build

I keep adding to my Master's of the Universe Mega Construx collection, and this was a welcome piece. I especially love the mechanical ingenuity to make the saw blade spin. Had a LOT of fun building the set.

He-Man on Battle Cat facing the Roton vehicle 5.0 out of 55.0Eric Schuetz · October 1, 2026
Masters of the Universe Battle Cat vs Roton

Perfect toddler toy!

I got this for my 20 month old and I was hesitant about whether she would like it but she immediately loved it! The table is low enough that a child sitting on the floor can play with it, and the blocks are big enough that they’re not a choking hazard. Most importantly of all, it’s a fun intuitive toy that my 19 month old toddler loved right away! Totally recommend. Also takes less than 2 seconds to…

Blue Build n Tumble table with toddler blocks and figure 5.0 out of 55.0Mike · February 28, 2024
Build 'n Tumble Activity Table, 25 Pieces

This was my first time building something that lights up

I love this set because it has a light up function with a usp cord to plug in

Geralt fighting griffin outside Corvo Bianco brick house 5.0 out of 55.0Jason A. Belser · May 26, 2026
The Witcher Geralt's Griffin Hunt, 1170 Pieces

About Mega Brands and the MEGA building sets

Our history: from one block toy to a brickyard

Our history started with a simple idea: building should be open to everyone, from the toddler holding a first big block toy to the adult collector planning a shelf display. That idea grew into MEGA Bloks, the large, soft-edged building blocks for babies and toddlers, and into MEGA Construx and the MEGA building toy lines that bring licensed worlds into brick form. Along the way our business kept adding innovations — poseable micro action figures, motion builds with working cranks, pixel-art bricks — and today the MEGA name covers big blocks, collectible figures and detailed display models with thousands of pieces. Mega Brands joined Mattel in 2014, and every toy in the series still starts with the same question: what will be fun to build?

MEGA Bloks for the first builders

MEGA Bloks First Builders sets are where most of our builders begin. The big blocks are sized for little hands, so a toddler practises fine motor skills while stacking, sorting by colour and pulling pieces apart — learning through play, with plenty of fun and early creativity. Vehicles with buildable tops, block buddies, musical sets and big building bags with storage keep the play going, and every bag of MEGA Bloks clicks with the next one, so a collection of building blocks can expand with your child.

Building sets for kids who want a world

Around age six, builders want stories. Our MEGA Pokémon sets let kids build Pikachu, Charizard and Eevee, pop a figure into a buildable Poké Ball, or set up a training stadium battle. MEGA Halo building sets put Spartans, Warthogs and Banshees on the table with poseable micro action figures, and Hot Wheels and Masters of the Universe sets bring race cars, monster trucks and Castle Grayskull into the same brickyard. Endless adventures, and every set fits the rest of the collection.

Collector builds for adults

For adult collectors we make display builds with real engineering: motion Pokémon with turning cranks, pixel-art figures for the wall, detailed Halo vehicles, Hot Wheels race cars with a die-cast model in the box, retro consoles and big Masters of the Universe weapons. These are long, satisfying builds — a quiet evening at the table — that end as a collectible piece you want to keep on show.

How to choose your next MEGA set

Start with the builder. Under three: MEGA Bloks First Builders with big blocks and storage. Six and up: MEGA Pokémon Poké Balls, Hot Wheels race cars and Halo micro figure packs. Twelve and up or adult collectors: motion builds, pixel art and vehicles with hundreds or thousands of pieces. Every listing in our brickyard shows the piece count and ages, and each product page links to its build line, so you can expand a collection set by set.

Questions builders ask us

Is Mega Brands owned by Mattel?

Yes. Mega Brands joined Mattel in 2014, and our building lines — MEGA Bloks, MEGA Construx and the MEGA collector sets — are made under the MEGA name inside the Mattel family of brands.

What are Mega Brands toys?

We make construction toys: MEGA Bloks big building blocks for toddlers, MEGA Construx and MEGA building sets for kids, and detailed collector builds for adults, plus a few classic Mega Brands puzzles and games.

Is MEGA the same as LEGO?

No. MEGA is our own brand of building sets with its own bricks, figures and licences such as Pokémon, Halo and Hot Wheels. Our standard bricks are built to the common stud system, so many builders mix them with other bricks at home.

What age groups are MEGA toys suitable for?

MEGA Bloks First Builders start at 12 months; most MEGA Pokémon and Hot Wheels sets are for ages 6 and up; Halo, motion and pixel-art builds are marked 8+, 12+ or for adult collectors. The ages are on every product page.

Where can MEGA products be purchased?

Each product page in our brickyard has a button that opens the set on our partner store, where you see the live price, stock and delivery options and place the order.

How do I clean MEGA Bloks?

Wash big MEGA Bloks in warm, soapy water, rinse and let them air-dry fully before storing them. Sets with stickers, lights or electronics should only be wiped with a damp cloth.

The whole MEGA line-upPokémon, Halo, MEGA Bloks and more