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Back of the Box Builds

Back of the Box Builds

LEGO Set Alternate Builds!

  • THEMES
    • Adventurers
    • Aquazone
    • Belville
    • Building Set with People
    • Castle
    • Duplo
    • Harry Potter
    • Holiday and Event
    • Model Team
    • Ninja
    • Pirates
    • Rock Raiders
    • Space
    • Star Wars
    • Studios
    • Technic
    • Time Cruisers
    • Town
    • Train
    • Western
    • Misc
  • USEFUL LINKS
    • Contribute!
    • New Instructions
    • New Official Sets
    • New Alternate Builds
    • Minifigs
    • Very Small Builds
    • Small Builds
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    • Extra Large Builds
    • About
  • THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

M:Tron Sets

M:Tron M:Tron Sets Official Sets Small Builds Space 

6896: Celestial Forager

January 26, 2022January 26, 2022 Master Builder 1706 Views

Year Released: 1990BricklinkInstructions

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M:Tron M:Tron Sets Official Sets Small Builds Space 

6877: Vector Detector

June 7, 2021June 7, 2021 Master Builder 1649 Views

Year Released: 1990BricklinkInstructions

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M:Tron M:Tron Sets Official Sets Space Very Small Builds 

6811: Pulsar Charger

April 17, 2020April 17, 2020 Master Builder 1561 Views

Year Released: 1990InstructionsBricklink

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M:Tron M:Tron Sets Official Sets Space Very Small Builds 

6833: Beacon Tracer

April 11, 2020April 11, 2020 Master Builder 1772 Views

Year Released: 1990InstructionsBricklink

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M:Tron M:Tron Sets Medium Builds Official Sets 

6923: Particle Ionizer

October 1, 2019October 25, 2019 Master Builder 1503 Views

Year Released: 1990Bricklink

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Large Builds M:Tron M:Tron Sets Official Sets Space 

6956: Stellar Recon Voyager

September 23, 2019November 19, 2020 Master Builder 1853 Views

Year Released: 1990BricklinkInstructions

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Extra Large Builds M:Tron M:Tron Sets Official Sets 

6989: Mega Core Magnetizer

September 15, 2019September 28, 2019 Master Builder 2905 Views

Year Released: 1990Bricklink

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EXPLORE MORE OFFICIAL SETS

6379: Riding Stable
Building Classic Town Large Builds Official Sets Town Town Sets 

6379: Riding Stable

February 8, 2022February 8, 2022 Master Builder

Year Released: 1986BricklinkInstructions

920 (483): Alpha-1 Rocket Base
Classic Space Classic Space Sets Medium Builds Official Sets Space 

920 (483): Alpha-1 Rocket Base

February 2, 2021October 13, 2021 Master Builder
7190: Millennium Falcon
Extra Large Builds Official Sets Star Wars Star Wars Sets 

7190: Millennium Falcon

November 14, 2019November 14, 2019 Master Builder
6895: Spy-Trak I
Medium Builds Official Sets Space Space Police I Space Police I Sets 

6895: Spy-Trak I

April 8, 2020March 17, 2022 Master Builder
6442: Sting Ray Explorer
Divers Medium Builds Official Sets Town Town Sets 

6442: Sting Ray Explorer

December 29, 2021December 29, 2021 Master Builder
6879: Blizzard Baron
Ice Planet 2002 Ice Planet 2002 Sets Official Sets Small Builds 

6879: Blizzard Baron

November 20, 2019November 16, 2021 Master Builder
6090: Royal Knight’s Castle
Castle Castle Sets Extra Large Builds Official Sets Royal Knights 

6090: Royal Knight’s Castle

July 13, 2021July 13, 2021 Master Builder
5975: T-Rex Transport
Adventurers Adventurers Sets Dino Island Official Sets Small Builds 

5975: T-Rex Transport

December 29, 2021December 29, 2021 Master Builder
3056: Go-Kart
Classic Town Official Sets Race Town Town Sets Very Small Builds 

3056: Go-Kart

July 26, 2020July 26, 2020 Master Builder
6376: Breezeway Cafe
Classic Town Food and Drink Medium Builds Official Sets Town Town Sets 

6376: Breezeway Cafe

February 3, 2021February 3, 2021 Master Builder
6890: Cosmic Cruiser
Classic Space Classic Space Sets Medium Builds Official Sets 

6890: Cosmic Cruiser

October 7, 2019October 7, 2019 Master Builder
1484: Weetabix Town House
Building Classic Town Medium Builds Official Sets Town Town Sets 

1484: Weetabix Town House

December 28, 2021December 28, 2021 Master Builder
607: Mini Loader
Classic Town Construction Official Sets Town Town Sets Very Small Builds 

607: Mini Loader

October 19, 2019April 4, 2020 Master Builder
1785: Introducing Crater Critters
Official Sets Small Builds Space Spyrius Spyrius Sets Unitron Unitron Sets 

1785: Introducing Crater Critters

December 28, 2021December 28, 2021 Master Builder
6271: Imperial Flagship
Imperial Guards Large Builds Official Sets Pirates Pirates I Pirates Sets 

6271: Imperial Flagship

January 6, 2022January 6, 2022 Master Builder
6073: Knight’s Castle
Black Falcons Castle Castle Sets Large Builds Official Sets 

6073: Knight’s Castle

October 23, 2019April 17, 2020 Master Builder

MINIFIGS

About This Site

Logo
In the 1960s, 70s, 80s, 90s, and early 2000s there were pictures of additional builds on the back of LEGO® boxes. There was a note that said you could build any of those exciting models with that set. There were no instructions, until now.

Themes

  • Adventurers
  • Aquazone
  • Belville
  • Building Set with People
  • Castle
  • Duplo
  • Harry Potter
  • Holiday and Event
  • Model Team
  • Ninja
  • Pirates
  • Rock Raiders
  • Space
  • Star Wars
  • Studio
  • Technic
  • Time Cruisers
  • Town
  • Train
  • Western
  • Misc

Useful Links

  • Contribute!
  • New Instructions
  • New Official Sets
  • New Alternate Builds
  • Minifigs
  • Very Small Builds (<35 pcs)
  • Small Builds (<100 pcs)
  • Medium Builds (<200 pcs)
  • Large Builds (<400 pcs)
  • Extra Large Builds (>400 pcs)
  • About

In Honor of 1526

The classic space set that never was.

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