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

LEGO Builders Club

ABCs Creator 3 in 1 Futuron Futuron Alternate Builds LEGO Builders Club LEGO Magazine Space 

Space Toilet

August 4, 2026August 28, 2026 Master Builder 6664 Views

MiscBuild: Space ToiletInstructions: View PDF (Official LEGO Instructions) *Alternate Build Connection: 31034: Creator 3-in-1 Future Flyers LEGO Club Magazine: September-October

Read more
Blacktron Blacktron Alternate Builds Captain Indigo Concepts and Prototypes Instructions Added LEGO Builders Club LEGO Magazine Space Very Small Alt Build Very Small Builds 

T42

March 9, 2025March 22, 2025 Master Builder 7527 Views

MiscBuild: T42 Instructions: View PDF | Download .io File Also Pictured: Blacktron Time Machine Bricks n Pieces: Spring 1988 – Page 4UK LEGO

Read more
Blacktron Blacktron Alternate Builds Captain Indigo Concepts and Prototypes Instructions Added LEGO Builders Club LEGO Magazine Small Alt Build Small Builds Space 

Blacktron Time Machine

March 1, 2025March 22, 2025 Master Builder 6976 Views

MiscBuild: Blacktron Time Machine Instructions: View PDF | Download .io File Also pictured: T42 Bricks n Pieces: Spring 1988 – Page 4UK LEGO

Read more
Concepts and Prototypes LEGO Builders Club LEGO Magazine You Can Build This 

Swinging On A Star

February 6, 2025March 22, 2025 Master Builder 6712 Views

MiscBuild: Would You Like to Swing on a StarSubmitted By: USERInstructions: Also pictured: Islander Mask Brick Kicks: Fall 1994 –

Read more
ABCs Concepts and Prototypes Futuron Futuron Alternate Builds LEGO Builders Club LEGO Magazine Space You Can Build This 

Space Sunglasses

February 6, 2025March 22, 2025 Master Builder 6919 Views

MiscBuild: Space SunglassesSubmitted By: USERInstructions: *Alternate Build Connection: 6990: Futuron Monorail Transport System Brick Kicks: Fall 1989 – Page 7US LEGO

Read more
Concepts and Prototypes LEGO Builders Club LEGO Magazine 

Marble Run

February 5, 2025March 22, 2025 Master Builder 6726 Views

MiscBuild: Marble RunSubmitted By: USERInstructions: Bricks n Pieces: Autumn 1987 – Page 10UK LEGO Club Magazine 

Read more
ABCs Concepts and Prototypes Islanders LEGO Builders Club LEGO Magazine Pirates You Can Build This 

Islander Mask

January 26, 2025March 22, 2025 Master Builder 6965 Views

MiscBuild: Islander MaskSubmitted By: USERInstructions: *Alternate Build Connection: Islanders Also pictured: Swinging On A Star Brick Kicks: Fall 1994 –

Read more

EXPLORE MORE OFFICIAL SETS

6818: Cyborg Scout
Official Sets Small Builds Space UFO UFO Sets 

6818: Cyborg Scout

July 18, 2022July 18, 2022 Master Builder

Year Released: 1997BricklinkInstructions

6926: Mobile Recovery Vehicle
Classic Space Classic Space Sets Medium Builds Official Sets Space 

6926: Mobile Recovery Vehicle

October 12, 2021October 12, 2021 Master Builder
7204: Jedi Defense II
Episode I Official Sets Star Wars Star Wars Sets Very Small Builds 

7204: Jedi Defense II

June 27, 2022June 27, 2022 Master Builder
6815: Hovertron
Exploriens Exploriens Sets Official Sets Space Very Small Builds 

6815: Hovertron

June 28, 2022June 28, 2022 Master Builder
4766: Graveyard Duel
Extra Large Builds Goblet of Fire Harry Potter Harry Potter Sets Official Sets 

4766: Graveyard Duel

May 16, 2023December 16, 2025 Master Builder
6453: Com-Link Cruiser (Comlink Cruiser)
Official Sets Small Builds Space Port Town Town Sets 

6453: Com-Link Cruiser (Comlink Cruiser)

August 2, 2020July 14, 2021 Master Builder
6739: Truck & Stunt Trikes
Island Xtreme Stunts Island Xtreme Stunts Sets Medium Builds Official Sets 

6739: Truck & Stunt Trikes

April 16, 2026April 16, 2026 Master Builder
6210: Jabba’s Sail Barge
Episode IV/V/VI Extra Large Builds Official Sets Star Wars Star Wars Sets 

6210: Jabba’s Sail Barge

February 1, 2024February 1, 2024 Master Builder
1916 (Kabaya: Space 3): Starion Patrol
Jørn Thomsen Official Sets Space Space Police II Space Police II Sets Very Small Builds 

1916 (Kabaya: Space 3): Starion Patrol

January 19, 2022February 25, 2025 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
6769: Fort Legoredo
Extra Large Builds Jørn Thomsen Official Sets Western Western Sets 

6769: Fort Legoredo

November 10, 2019July 29, 2023 Master Builder
6484: F1 Hauler
Classic Town Large Builds Official Sets Race Town Town Sets 

6484: F1 Hauler

March 21, 2023March 21, 2023 Master Builder
6551: Checkered Flag 500
Medium Builds Official Sets Town Town Sets 

6551: Checkered Flag 500

November 21, 2023November 21, 2023 Master Builder
6801: Moon Buggy
Classic Space Classic Space Sets Official Sets Very Small Builds 

6801: Moon Buggy

September 22, 2019September 28, 2019 Master Builder
1597: Castle 3-Pack
Bonus/Value Pack Sets Bonus/Value Packs Official Sets Small Builds 

1597: Castle 3-Pack

July 22, 2024January 20, 2026 Master Builder
6088: Robber’s Retreat
Box Story Large Builds Ninja Ninja Alternate Builds Ninja Official Sets Official Sets 

6088: Robber’s Retreat

January 24, 2022April 3, 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.