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
12V Large Builds Official Sets Town Train Train Sets 

7725: Electric Passenger Train

December 29, 2021July 26, 2022 Master Builder 7477 Views

Year Released: 1981
Bricklink
Instructions

Back A
Back B
Inside A
Inside B
  • ← 7143: Jedi Starfighter
  • 6483: Coastal Patrol →

You May Also Like

6983 – Back C

December 22, 2025December 29, 2025 Master Builder

6402 – Back B

October 5, 2019November 18, 2021 Master Builder

6699 – Back A

October 28, 2025October 28, 2025 Master Builder

7700: Stealth Hunter

March 26, 2026March 26, 2026 Master Builder

7140 – Instructions 1+3

April 21, 2026April 21, 2026 Master Builder

6511 – Back C

May 10, 2022May 10, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

6870: Space Probe Launcher
Classic Space Classic Space Sets Official Sets Small Builds Space 

6870: Space Probe Launcher

January 12, 2021January 12, 2021 Master Builder

Year Released: 1981BricklinkInstructions

4032: Passenger Plane
Airport Medium Builds Official Sets Town Town Sets World City 

4032: Passenger Plane

December 29, 2021December 29, 2021 Master Builder
6958: Android Base
Exploriens Exploriens Sets Large Builds Official Sets 

6958: Android Base

November 9, 2019April 16, 2021 Master Builder
5925: Pontoon Plane
Adventurers Adventurers Sets Jungle Official Sets Small Builds 

5925: Pontoon Plane

March 5, 2026March 5, 2026 Master Builder
6396: International Jetport
Airport Classic Town Extra Large Builds Official Sets Town Town Sets 

6396: International Jetport

July 14, 2021July 14, 2021 Master Builder
7256: Jedi Starfighter & Vulture Droid
Episode III Medium Builds Official Sets Star Wars Star Wars Sets 

7256: Jedi Starfighter & Vulture Droid

March 1, 2023May 12, 2023 Master Builder
7310: Mono Jet
Life on Mars Life on Mars Sets Official Sets Very Small Builds 

7310: Mono Jet

April 16, 2021April 16, 2021 Master Builder
6018: Battle Dragon
Black Knights Castle Castle Sets Official Sets Small Builds 

6018: Battle Dragon

October 5, 2019April 4, 2020 Master Builder
6348: Surveillance Squad
Classic Town Large Builds Official Sets Police Town Town Sets 

6348: Surveillance Squad

June 23, 2026June 23, 2026 Master Builder
6643: Fire Truck
Classic Town Fire Official Sets Small Builds Town Town Sets 

6643: Fire Truck

July 2, 2024July 2, 2024 Master Builder
6889: Recon Robot
ABCs Jørn Thomsen Medium Builds Official Sets Space Spyrius Spyrius Sets 

6889: Recon Robot

October 24, 2019September 9, 2024 Master Builder
4558: Metroliner
9V Extra Large Builds Official Sets Town Train Train Sets 

4558: Metroliner

August 11, 2026August 11, 2026 Master Builder
6871: Star Patrol Launcher
Classic Space Classic Space Sets Official Sets Small Builds 

6871: Star Patrol Launcher

September 27, 2019September 30, 2019 Master Builder
6250: Cross Bone Clipper
Medium Builds Official Sets Pirates Pirates I Pirates Sets 

6250: Cross Bone Clipper

February 20, 2025February 20, 2025 Master Builder
1620-2: Factory
Classic Town Food and Drink Medium Builds Official Sets Town Town Sets 

1620-2: Factory

October 21, 2021October 21, 2021 Master Builder
6236: King Kahuka
Islanders Official Sets Pirates Pirates I Pirates Sets Small Builds 

6236: King Kahuka

December 28, 2021December 28, 2021 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.