Skip to content
Back of the Box Builds

Back of the Box Builds

LEGO Alternate Builds!

  • SETS
    • Adventurers
    • Aquazone
    • Belville
    • BATMAN™
    • BIONICLE
    • Building Set with People
    • Castle
    • Duplo
    • Fabuland
    • Harry Potter
    • Holiday and Event
    • LEGOLAND
    • Model Team
    • Pirates
    • Space
    • Star Wars
    • Technic
    • Train
    • Town
    • Universal Building Set
    • Western
    • More Sets
    • Misc
  • USEFUL LINKS
    • Submit Instructions!
    • New Instructions
    • New Official Sets
    • New Alternate Builds
    • Minifigs
    • Very Small Builds
    • Small Builds
    • Medium Builds
    • Large Builds
    • Extra Large Builds
    • How BOTBB was Built
  • THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

M:Tron Sets

Bonus/Value Pack Sets Bonus/Value Packs M:Tron M:Tron Sets Official Sets Space Very Small Builds 

9401: M:Tron Team

February 18, 2026March 7, 2026 Master Builder 6905 Views

Year Released: 1993 Summer Shop at Home 1993 Summer Shop at Home – Page 24-25

Read more
Large Builds M:Tron M:Tron Alternate Builds M:Tron Sets Official Sets Space Super Model 

6862: Secret Space Voyager

July 29, 2023July 29, 2023 Master Builder 6798 Views

Year Released: 1991BricklinkInstructions

Read more
ABCs Jørn Thomsen M:Tron M:Tron Sets Official Sets Small Builds Space 

6896: Celestial Forager

January 26, 2022July 31, 2023 Master Builder 6945 Views

Year Released: 1990Designer: Jørn ThomsenBricklinkInstructions *Alternate Build Connection: 6862: Secret Space Voyager

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

6877: Vector Detector

June 7, 2021October 14, 2024 Master Builder 7160 Views

Year Released: 1990BricklinkInstructions *Alternate Build Connection: 6862: Secret Space Voyager

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

6811: Pulsar Charger

April 17, 2020April 17, 2020 Master Builder 7387 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 6840 Views

Year Released: 1990InstructionsBricklink

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

6923: Particle Ionizer

October 1, 2019August 13, 2023 Master Builder 6975 Views

Year Released: 1990BricklinkInstructions (Revision/Addition: P12, Step 17) *Alternate Build Connection: 6862: Secret Space Voyager

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

6956: Stellar Recon Voyager

September 23, 2019November 19, 2020 Master Builder 7202 Views

Year Released: 1990BricklinkInstructions

Read more
Box Marketing Blurb Extra Large Builds Jørn Thomsen M:Tron M:Tron Sets Official Sets 

6989: Mega Core Magnetizer (Multi Core Magentizer)

September 15, 2019February 18, 2026 Master Builder 9685 Views

Year Released: 1990Designer: Jørn ThomsenBricklinkInstructions The box reads, “Creativity and Quality Craftsmanship are the key ingredients in this and all LEGO® brand

Read more

EXPLORE MORE OFFICIAL SETS

2846: Indian Kayak
Indians Official Sets Very Small Builds Western Western Sets 

2846: Indian Kayak

October 10, 2023October 10, 2023 Master Builder

Year Released: 1997BricklinkInstructions

6422: Telephone Repair
Official Sets Town Town Jr Town Sets Traffic Very Small Builds 

6422: Telephone Repair

July 28, 2020July 28, 2020 Master Builder
7139: Ewok Attack
Episode IV/V/VI Official Sets Small Builds Star Wars Star Wars Sets 

7139: Ewok Attack

June 27, 2022February 24, 2023 Master Builder
1590-2: ANWB Breakdown Assistance
Classic Town Large Builds Official Sets Town Town Sets Traffic 

1590-2: ANWB Breakdown Assistance

October 22, 2021October 22, 2021 Master Builder
6085: Black Monarch’s Castle
Black Knights Castle Castle Sets Extra Large Builds Niels Milan Pedersen Official Sets 

6085: Black Monarch’s Castle

July 13, 2021July 29, 2023 Master Builder
6311: Curved Road Plates
Classic Town Official Sets Supplemental Town 

6311: Curved Road Plates

October 10, 2022October 10, 2022 Master Builder
6890: Cosmic Cruiser
Classic Space Classic Space Sets Medium Builds Official Sets 

6890: Cosmic Cruiser

October 7, 2019October 7, 2019 Master Builder
6850: Auxiliary Patroller
Bjarne Tveskov Futron Sets Futuron Official Sets Small Builds 

6850: Auxiliary Patroller

September 24, 2019July 29, 2023 Master Builder
1730: Snow Scooter
Classic Town Off-Road Official Sets Town Town Sets Very Small Builds 

1730: Snow Scooter

April 11, 2023April 11, 2023 Master Builder
10182: Café Corner
Creator Expert Extra Large Builds Modular Buildings Collection Official Sets 

10182: Café Corner

January 23, 2024January 23, 2024 Master Builder
6557: Treasure Hunters
Divers Medium Builds Official Sets Town Town Sets 

6557: Treasure Hunters

December 29, 2021June 28, 2022 Master Builder
6804: Surface Rover
Classic Space Classic Space Sets Official Sets Very Small Builds 

6804: Surface Rover

September 25, 2019September 28, 2019 Master Builder
1736 (1746 and 2891): Wizard’s Cart
Castle Castle Sets Dragon Knights Official Sets Very Small Builds 

1736 (1746 and 2891): Wizard’s Cart

September 24, 2024October 8, 2024 Master Builder
6984: Galactic Mediator
ABCs Box Marketing Blurb Jørn Thomsen Large Builds Official Sets Space Space Police II Space Police II Sets 

6984: Galactic Mediator

March 18, 2022June 23, 2025 Master Builder
1895: Sky Patrol
Classic Town Official Sets Police Small Builds Town Town Sets 

1895: Sky Patrol

June 1, 2022June 1, 2022 Master Builder
1593: Super Model
Classic Space Classic Space Sets Large Builds Official Sets Space Super Model 

1593: Super Model

February 3, 2021March 18, 2024 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

Logo
There were once pictures of additional LEGO® builds on the back of set boxes. Written on the boxes was typically something about the endless building possibilities, "Build any of these exciting models with this set!" There were no instructions for these alternate builds, until now.

Sets

  • Adventurers
  • Aquazone
  • BATMAN
  • Bionicle
  • Belville
  • Building Set with People
  • Castle
  • Duplo
  • Fabuland
  • Harry Potter
  • Holiday and Event
  • LEGOLAND
  • Model Team
  • Pirates
  • Space
  • Star Wars
  • Technic
  • Train
  • Town
  • Universal Building Set
  • Western
  • More Sets
  • Misc

Useful Links

  • Submit Instructions!
  • 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)
  • How BOTBB was Built

In Honor of 1526

The classic space set that never was.

Copyright © 2026 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.