Skip to content
Back of the Box Builds

Back of the Box Builds

LEGO Alternate Builds!

  • SETS
    • Adventurers
    • Aquazone
    • Belville
    • Building Set with People
    • Castle
    • Duplo
    • Harry Potter
    • Holiday and Event
    • LEGOLAND
    • Model Team
    • Ninja
    • Pirates
    • Rock Raiders
    • Space
    • Star Wars
    • Studios
    • Technic
    • Time Cruisers
    • Town
    • Universal Building Set
    • Western
    • Misc
  • USEFUL LINKS
    • Contribute!
    • New Instructions
    • New Official Sets
    • New Alternate Builds
    • Minifigs
    • Very Small Builds
    • Small Builds
    • Medium Builds
    • Large Builds
    • 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 2353 Views

Year Released: 1990BricklinkInstructions

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

6877: Vector Detector

June 7, 2021June 7, 2021 Master Builder 2537 Views

Year Released: 1990BricklinkInstructions

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

6811: Pulsar Charger

April 17, 2020April 17, 2020 Master Builder 2556 Views

Year Released: 1990InstructionsBricklink

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

6833: Beacon Tracer

April 11, 2020April 11, 2020 Master Builder 2418 Views

Year Released: 1990InstructionsBricklink

Read more
M:Tron M:Tron Sets Medium Builds Official Sets 

6923: Particle Ionizer

October 1, 2019October 25, 2019 Master Builder 2198 Views

Year Released: 1990Bricklink

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

6956: Stellar Recon Voyager

September 23, 2019November 19, 2020 Master Builder 2574 Views

Year Released: 1990BricklinkInstructions

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

6989: Mega Core Magnetizer

September 15, 2019September 28, 2019 Master Builder 3825 Views

Year Released: 1990Bricklink

Read more

EXPLORE MORE OFFICIAL SETS

6991: Monorail Transport Base
Extra Large Builds Official Sets Unitron Unitron Sets 

6991: Monorail Transport Base

September 28, 2019September 28, 2019 Master Builder

Year Released: 1994Bricklink

926 (493): Space Command Center
Classic Space Classic Space Sets Medium Builds Official Sets Space 

926 (493): Space Command Center

October 22, 2019October 13, 2021 Master Builder
6761: Bandit’s Secret Hide-Out
Cowboys Large Builds Official Sets Western Western Sets 

6761: Bandit’s Secret Hide-Out

December 29, 2021October 19, 2022 Master Builder
6310: T-Road Plates
Base Plates Classic Town Official Sets Town 

6310: T-Road Plates

October 10, 2022October 10, 2022 Master Builder
7101: Lightsaber Duel
Episode I Official Sets Small Builds Star Wars Star Wars Sets 

7101: Lightsaber Duel

October 28, 2021October 28, 2021 Master Builder
1843 – Bottom
Castle Castle Alternate Builds Instructions Added Official Sets Royal Knights Small Alt Build Small Builds Space Spyrius Spyrius Sets Value Packs 

1843 – Bottom

January 22, 2021July 18, 2022 Master Builder
6503: Sprint Racer
Official Sets Race Town Town Sets Very Small Builds 

6503: Sprint Racer

July 9, 2022July 9, 2022 Master Builder
6594: Gas Transit
Classic Town Gas Station Medium Builds Official Sets Town Town Sets Wrecker 

6594: Gas Transit

November 19, 2020November 19, 2020 Master Builder
6875: Hovercraft
Futron Sets Futuron Official Sets Small Builds 

6875: Hovercraft

September 16, 2019September 28, 2019 Master Builder
6277: Imperial Trading Post
Extra Large Builds Imperial Guards Official Sets Pirates Pirates I Pirates Sets 

6277: Imperial Trading Post

January 6, 2022January 6, 2022 Master Builder
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
6663: Wave Rebel
Classic Town Harbor Official Sets Small Builds Town Town Sets Wrecker 

6663: Wave Rebel

June 6, 2022June 6, 2022 Master Builder
4032: Passenger Plane
Airport Medium Builds Official Sets Town Town Sets World City 

4032: Passenger Plane

December 29, 2021December 29, 2021 Master Builder
7133: Bounty Hunter Pursuit
Episode II Large Builds Official Sets Star Wars Star Wars Sets 

7133: Bounty Hunter Pursuit

July 14, 2021July 14, 2021 Master Builder
6246: Crocodile Cage
Islanders Official Sets Pirates Pirates I Pirates Sets Small Builds 

6246: Crocodile Cage

January 26, 2022January 26, 2022 Master Builder
6810: Laser Ranger
Futron Sets Futuron Official Sets Very Small Builds 

6810: Laser Ranger

September 25, 2019October 24, 2021 Master Builder

BUILD!

MINIFIGS

About This Site

Logo
There were once pictures of additional builds on the back of LEGO® boxes. On the box was, "Build any of these exciting models with this set." There were no instructions for these alternate builds, until now.

Sets

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

Copyright © 2023 Back of the Box Builds. All rights reserved. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize, or endorse this site.