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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 6935 Views

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

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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 6833 Views

Year Released: 1991BricklinkInstructions

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

6896: Celestial Forager

January 26, 2022July 31, 2023 Master Builder 6993 Views

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

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

6877: Vector Detector

June 7, 2021October 14, 2024 Master Builder 7190 Views

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

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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 7425 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 6879 Views

Year Released: 1990InstructionsBricklink

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

6923: Particle Ionizer

October 1, 2019August 13, 2023 Master Builder 7002 Views

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

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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 7231 Views

Year Released: 1990BricklinkInstructions

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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 9730 Views

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

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EXPLORE MORE OFFICIAL SETS

7141: Naboo Fighter
Episode I Medium Builds Official Sets Star Wars Star Wars Sets 

7141: Naboo Fighter

December 29, 2021December 29, 2021 Master Builder

Year Released: 2000BricklinkInstructions

6110: Solo Sub
Aquazone Aquazone Sets Hydronauts Official Sets Small Builds 

6110: Solo Sub

February 13, 2025February 13, 2025 Master Builder
1818: Aircraft and Ground Support Equipment and Vehicle
Airport Classic Town Medium Builds Official Sets Town Town Sets 

1818: Aircraft and Ground Support Equipment and Vehicle

April 7, 2025April 7, 2025 Master Builder
9355: Dacta Space Theme Set
Educational & Dacta Extra Large Builds Futron Sets Futuron Official Sets Space 

9355: Dacta Space Theme Set

March 2, 2023May 18, 2023 Master Builder
6067: Guarded Inn
Castle Castle Sets Daniel August Krentz Large Builds Lion Knights Official Sets 

6067: Guarded Inn

February 9, 2021July 29, 2023 Master Builder
6872: Xenon X-Craft
Classic Space Classic Space Sets Official Sets Small Builds 

6872: Xenon X-Craft

October 19, 2019April 21, 2026 Master Builder
889: Radar Truck
Classic Space Classic Space Sets Official Sets Very Small Builds 

889: Radar Truck

September 22, 2019September 28, 2019 Master Builder
2162: Hydro Reef Wrecker
Aquaraiders I Aquazone Aquazone Sets Large Builds Official Sets 

2162: Hydro Reef Wrecker

July 18, 2022July 18, 2022 Master Builder
6016: Knight’s Arsenal
Castle Castle Sets Lion Knights Official Sets Very Small Builds 

6016: Knight’s Arsenal

October 12, 2021October 12, 2021 Master Builder
735: Basic Building Set
Basic Extra Large Builds Official Sets Universal Building Set 

735: Basic Building Set

September 15, 2022September 15, 2022 Master Builder
4735: Slytherin
Chamber of Secrets Harry Potter Harry Potter Sets Official Sets Small Builds 

4735: Slytherin

February 27, 2023February 27, 2023 Master Builder
5550: Custom Rally Van
Extra Large Builds Model Team Model Team Sets Official Sets 

5550: Custom Rally Van

February 9, 2026March 4, 2026 Master Builder
6881: Lunar Rocket Launcher
Classic Space Classic Space Sets Official Sets Small Builds 

6881: Lunar Rocket Launcher

October 2, 2019October 2, 2019 Master Builder
885: Space Scooter
Classic Space Classic Space Sets Official Sets Space Very Small Builds 

885: Space Scooter

January 27, 2024May 13, 2026 Master Builder
6012: Siege Cart
Castle Castle Sets Lion Knights Official Sets Small Builds 

6012: Siege Cart

September 24, 2024September 24, 2024 Master Builder
6949: Robo-Guardian
ABCs Large Builds Official Sets Space Spyrius Spyrius Sets 

6949: Robo-Guardian

October 23, 2019August 15, 2023 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.

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