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
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6872 – Back D

October 19, 2019April 21, 2026 Master Builder 5039 Views

From: 6872: Xenon X-Craft
Name: TBD 1
Instructions: View PDF |  Download .io File

Contributions

  1. Name, PDF and .io file submitted on October 19, 2019 by: matt_0937.
  • ← 6872 – Back C
  • 6022: Horse Cart →

You May Also Like

6953 – Back B

February 3, 2021February 3, 2021 Master Builder

6957 – Back C

July 11, 2022December 20, 2023 Master Builder

6846: Tri-Star Voyager

September 26, 2019September 28, 2019 Master Builder

6596 – Back C

September 15, 2022September 15, 2022 Master Builder

6970 – Back H

June 8, 2022June 29, 2022 Master Builder

6687 – Back A

December 27, 2021December 27, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

6060: Knight’s Challenge
Castle Castle Sets Lion Knights Medium Builds Official Sets 

6060: Knight’s Challenge

July 2, 2024October 1, 2024 Master Builder

Year Released: 1989BricklinkInstructions

6350: Pizza To Go
Classic Town Food and Drink Medium Builds Official Sets Town Town Sets 

6350: Pizza To Go

April 9, 2020February 3, 2021 Master Builder
6099: Traitor Transport {with Dragon Cave}
Box Plus Castle Castle Sets Fright Knights Medium Builds Official Sets Playscape/Play Stage Box 

6099: Traitor Transport {with Dragon Cave}

April 1, 2025April 1, 2025 Master Builder
6740: Xtreme Tower
Island Xtreme Stunts Island Xtreme Stunts Sets Large Builds Official Sets 

6740: Xtreme Tower

April 16, 2026April 16, 2026 Master Builder
6441: Deep Reef Refuge
Divers Large Builds Official Sets Town Town Sets 

6441: Deep Reef Refuge

November 6, 2019December 29, 2021 Master Builder
5975: T-Rex Transport
Adventurers Adventurers Sets Dino Island Official Sets Small Builds 

5975: T-Rex Transport

December 29, 2021December 29, 2021 Master Builder
6887: Allied Avenger
ABCs Blacktron II Blacktron II Sets Official Sets Small Builds 

6887: Allied Avenger

October 5, 2019July 31, 2023 Master Builder
1484: Weetabix Town House
Building Classic Town Medium Builds Official Sets Town Town Sets 

1484: Weetabix Town House

December 28, 2021December 28, 2021 Master Builder
6991: Monorail Transport Base
Extra Large Builds Jørn Thomsen Official Sets Space Unitron Unitron Sets 

6991: Monorail Transport Base

September 28, 2019July 29, 2023 Master Builder
371-3: Seaplane
Airport LEGOLAND Medium Builds Official Sets 

371-3: Seaplane

October 8, 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
926 (493): Space Command Center
Classic Space Classic Space Sets Jens Nygaard Knudsen Medium Builds Official Sets Space 

926 (493): Space Command Center

October 22, 2019July 31, 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
6750: Sonic Robot
Classic Space Classic Space Sets Official Sets Small Builds 

6750: Sonic Robot

September 22, 2019September 28, 2019 Master Builder
6790: Bandit’s Wheelgun
Cowboys Official Sets Very Small Builds Western Western Sets 

6790: Bandit’s Wheelgun

October 10, 2023October 10, 2023 Master Builder
6675: Road & Trail 4×4
Classic Town Off-Road Official Sets Small Builds Town Town Sets 

6675: Road & Trail 4×4

March 20, 2023March 20, 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.

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.