Top Seven Alternative LEGO-Compatible Building Kits Discounted This October Prime Day

While LEGO is the most popular snap-together brick system, Prime Day also features deals on brands like Mould King and Kre-O. These alternatives, though less mainstream, offer unique designs and are often far more affordable than their LEGO counterparts.

While I wouldn’t recommend blending these imitation bricks with genuine LEGO sets—I have my principles—these Prime Day deals on creative, non-LEGO kits are worth exploring. They venture into imaginative realms LEGO hasn’t touched.

LED-lit Coffee House construction set

While I won’t claim this Coffee House kit by Insoon is a knockoff of the Friends set, it certainly evokes nostalgia for a certain 90s TV show. Imagine assembling mini figs like Jachel, Nonica, Sheebee, Dandler, and Pete for a coffee meetup at Central Cafe (not Central Perk). This 1,589-piece set includes LED lights and is currently discounted to $35.99 from $42.99—a steal for such a detailed build.

'Break Bad' Mobile Lab Kit

The Amazon description claims this camper set is "inspired by the iconic TV series

The Break Bad." It includes block-style figures of "Walter White and Jesse Pinkman" alongside the "legendary caravan." This is just one of countless desert RV kits available. Amazon features numerous listings for "Break Bad" RVs, with various brands offering brick sets complete with lab gear, blue translucent bricks, and other memorable details from The Break Bad. Truly, capitalism knows no bounds.

Mould King Grand Pirate Ship Replica

This enormous non-LEGO set boasts 4,364 pieces! Once assembled—thanks to its clear and straightforward instructions—you’ll have a stunning replica of the Flying Dutchman. It’s visually impressive, and once disassembled, you’ll be left with plenty of extra bricks that work seamlessly with "your existing branded toys."

Flying Dutchman Ghost Ship Replica

Continuing with pirate-themed non-LEGO sets, here’s a haunting rendition of The Flying Dutchman by JMBricklayer. It features eerie green lighting, tattered sails, glow-in-the-dark details, and an octopus flag that evokes no specific Disney pirate references. Currently discounted to $47.95 (40% off), this set is marketed as a unique collector’s item, with its description boasting: "JMBricklayer’s original pirate ship brick set stands out as a one-of-a-kind treasure for enthusiasts."

Demon Slayer Katana

For the ultimate enthusiast, if a standard replica sword doesn’t scream your dedication loudly enough, consider a LEGO-style brick-built sword. This Prime Day deal brings it down to just $31.99—a modest investment to maintain your nerdy cred.

Typewriter, Walkman, Television

There’s a certain charm in crafting brick replicas of outdated tech. While some might question why anyone would want to preserve mediocre gadgets through DIY models, I absolutely would. If you’re also keen on building a typewriter, Walkman, or television from plastic bricks, Prime Day offers them at a bargain. Personally, I find the TV model particularly striking.

Hogwarts Magic Castle with Harry Potter Features

The Amazon description for the Hog Magic Castle with Harry Characteristics claims it’s a "Fantasy Harry Toy for Adults," which oddly sounds suggestive. It further states, "The intricate Warts Magic Castle building block set includes tiny pieces," leaving me utterly baffled. Even by off-brand LEGO standards, this set appears poorly designed, though its name is undeniably amusing.