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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
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    • Misc
  • USEFUL LINKS
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    • How BOTBB was Built
  • THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Grey:tron

Concepts and Prototypes Grey:tron Grøntrøn Space 

Greytron

February 11, 2025February 11, 2025 Master Builder 8533 Views

MiscTheme: Greytron (Not Official) BrickJournal: Issue 6 Volume 2 – Page 42TwoMorrows PublishingPhoto Credit: Niels Milan Pedersen’s personal LEGO archives LEGO®

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Concepts and Prototypes Grey:tron Grøntrøn Space 

BrickJournal Issue 6 Volume 2 Page 42 – Concept 1

February 23, 2023August 15, 2023 Master Builder 3658 Views

BrickJournal Issue 6 Volume 2TwoMorrows PublishingPhoto Credit: Niels Milan Pedersen’s personal LEGO archives

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EXPLORE MORE OFFICIAL SETS

6805: Astro Dasher
Classic Space Classic Space Sets Official Sets Space Very Small Builds 

6805: Astro Dasher

December 10, 2025December 10, 2025 Master Builder

Year Released: 1985BricklinkInstructions

3676: Catherine Cat’s Fun Park
Box Story Fabuland Fabuland Sets Official Sets Small Builds 

3676: Catherine Cat’s Fun Park

March 1, 2025March 1, 2025 Master Builder
6821: Shovel Buggy (Geological Inspection)
Classic Space Classic Space Sets Official Sets Space Very Small Builds 

6821: Shovel Buggy (Geological Inspection)

February 17, 2026February 17, 2026 Master Builder
6642: Police Helicopter
Classic Town Official Sets Police Small Builds Town Town Sets 

6642: Police Helicopter

April 8, 2020April 8, 2020 Master Builder
6845: Cosmic Charger
Classic Space Classic Space Sets Official Sets Small Builds Space 

6845: Cosmic Charger

January 14, 2025January 14, 2025 Master Builder
6090: Royal Knight’s Castle
Castle Castle Sets Extra Large Builds Niels Milan Pedersen Official Sets Royal Knights 

6090: Royal Knight’s Castle

July 13, 2021July 29, 2023 Master Builder
1620: Astro Dart
Bjarne Tveskov Bonus/Value Pack Sets Futron Sets Futuron Official Sets Space Very Small Builds 

1620: Astro Dart

September 6, 2023September 7, 2023 Master Builder
7143: Jedi Starfighter
Episode II Medium Builds Official Sets Star Wars Star Wars Sets 

7143: Jedi Starfighter

December 29, 2021December 29, 2021 Master Builder
6990: Futuron Monorail Transport System
ABCs Bjarne Tveskov Extra Large Builds Futron Sets Futuron Official Sets Space 

6990: Futuron Monorail Transport System

August 30, 2020February 12, 2025 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
6258: Smuggler’s Shanty
Official Sets Pirates Pirates I Pirates Sets Small Builds 

6258: Smuggler’s Shanty

July 8, 2022July 8, 2022 Master Builder
600: Police Patrol
Classic Town Official Sets Police Town Town Sets Very Small Builds 

600: Police Patrol

July 11, 2024July 11, 2024 Master Builder
1621: Lunar MPV Vehicle
Bonus/Value Pack Sets Futron Sets Futuron Jørn Thomsen Official Sets Small Builds Space 

1621: Lunar MPV Vehicle

September 6, 2023September 7, 2023 Master Builder
6394: Metro Park & Service Tower
Classic Town Extra Large Builds Gas Station Official Sets Town Town Sets Wrecker 

6394: Metro Park & Service Tower

February 17, 2023February 17, 2023 Master Builder
1747: Treasure Cave
Official Sets Pirates Pirates I Pirates Sets Very Small Builds 

1747: Treasure Cave

May 6, 2022May 6, 2022 Master Builder
6048: Majisto’s Magical Workshop
Castle Castle Sets Dragon Knights Medium Builds Official Sets 

6048: Majisto’s Magical Workshop

October 14, 2021October 14, 2021 Master Builder

BOXES

INSTRUCTIONS

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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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