I'm trying to find all the competitors to LEGO. I know there is MegaBloks. What are some more?

The base idea is that they should be bricks and they need to connect to each other like LEGO. However, it does not need to be compatible with LEGO.

Also open source designs are always welcome!

  • Playmobil is the one I can never remember.
    – user6157
    Commented Sep 6, 2015 at 23:25
  • I don't think Playmobil really qualifies as "should be bricks and they need to connect to each other" - there are a few sets where you can build houses from a few different wall and floor pieces, but that was about it. Commented Sep 7, 2015 at 15:22

6 Answers 6


Disclaimer: some of these retrieved from the lugnet off-topic/clone-brands group; they also mention "Art Asylum’s C3 Brand" but the site doesn't seem to work.

  • 1
    Perhaps I phrased my question a little off. I want to know if there's any LEGO like bricks that's not compatible with LEGO.
    – Pwnna
    Commented Oct 4, 2012 at 0:26
  • 2
    Both questions have merit, so you may want to edit your original question to ask for both.
    – Joubarc
    Commented Oct 4, 2012 at 4:43
  • The connectivity of K'NEX bricks are amazing, they are designed for builds that undergo torque and pressure.
    – user6907
    Commented Apr 4, 2016 at 22:11

In terms of semi/incompatible systems, there's a number of them that are supported through the Free Universal Construction Kit files for MakerBots and other 3D printers:

The Free Universal Construction Kit offers adapters between Lego, Duplo, Fischertechnik, Gears! Gears! Gears!, K’Nex, Krinkles (Bristle Blocks), Lincoln Logs, Tinkertoys, Zome, and Zoob.


Besides the resources mentioned by others, you might also be interested in this excellent compilation of all LEGO knockoff products and competitors titled Communist LEGO. It is in a form of a PDF and is a highly enjoyable read: http://www.1000steine.com/brickset/miscellaneous/clonebrands.pdf


Wikipedia has a pretty complete listing as well.

  • Ausini
  • BanBao
  • Best-Lock
  • Brictek
  • Built to Rule
  • Cobi
  • Character Options
  • CoCo
  • Cogo
  • Enlighten Brick
  • K'nex (Note: some sets feature Lego-compatible studs)
  • Kre-O
  • Laser Pegs
  • Lite Brix
  • Mega Bloks
  • Nintendo (Manufactured Nintendo Block, later rebranded N&B Block)
  • Oxford
  • Rokenbok
  • Sluban
  • SY
  • Star Diamond
  • Tyco Super Blocks
  • Super Blox

From the back of my head, I would also add

  • Ionix (Tenkai Knights)
  • Nanoblock

LEGO-like, but not compatible? Nano Blocks. http://www.mynanoblock.com/site/


Montini; made in the '60's in The Netherlands, but Lego put a stop to that. Compatible underside in alternative positions if Lego doesn't have hollow stud for ×2's (the ×1's okay), as has pins, studs taller so Lego plate leaves a gap.

Large Mega Blocks fits atop Duplo, although they also make fully compatible.

Tente of Spain, hollow studs, brick with same N° of studs rests atop Lego, but not holding on.

Unknown British, a fraction smaller as using inches, used it at primary school in the 1960's.

Pennybrix, ~1964 by tri-ang. L-shaped studs.

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