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Back of the Box Builds

Back of the Box Builds

LEGO Alternate Builds!

  • SETS
    • Adventurers
    • Aquazone
    • Belville
    • Building Set with People
    • Castle
    • Duplo
    • Fabuland
    • Harry Potter
    • Holiday and Event
    • LEGOLAND
    • Model Team
    • Pirates
    • Space
    • Star Wars
    • Technic
    • 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

Train Alternate Builds

Alternate Builds Large Builds Train Train Alternate Builds 

4555 – Back D

January 2, 2024January 2, 2024 Master Builder 2764 Views

From: 4555: Cargo StationName: TBDSubmitted by: USERInstructions

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Alternate Builds Large Builds Train Train Alternate Builds 

4555 – Back C

January 2, 2024January 2, 2024 Master Builder 2575 Views

From: 4555: Cargo StationName: TBDSubmitted by: USERInstructions

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Alternate Builds Large Builds Train Train Alternate Builds 

4555 – Back B

January 2, 2024January 2, 2024 Master Builder 2517 Views

From: 4555: Cargo StationName: TBDSubmitted by: USERInstructions

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Alternate Builds Large Builds Train Train Alternate Builds 

4555 – Back A

January 2, 2024January 2, 2024 Master Builder 2614 Views

From: 4555: Cargo StationName: TBDSubmitted by: USERInstructions

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Alternate Builds Instructions Added Medium Alt Build Medium Builds Train Train Alternate Builds 

7725 – Inside B

November 4, 2022August 1, 2023 Master Builder 4490 Views

From: 7725: Electric Passenger TrainName: Central Station Instructions: View PDF | Download .io File

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Alternate Builds Instructions Added Medium Alt Build Medium Builds Train Train Alternate Builds 

7725 – Inside A

October 14, 2022August 1, 2023 Master Builder 3089 Views

From: 7725: Electric Passenger TrainName: Steeplecab Shunter, Station & Signalbox Instructions: View PDF | Download .io File

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Alternate Builds Instructions Added Medium Alt Build Medium Builds Train Train Alternate Builds 

7725 – Back B

October 13, 2022August 1, 2023 Master Builder 2992 Views

From: 7725: Electric Passenger TrainName: Lumber Train Instructions: View PDF | Download .io File

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Alternate Builds Large Builds Train Train Alternate Builds 

4563 – Back A

July 26, 2022July 26, 2022 Master Builder 2307 Views

From: 4563: Load N’ Haul RailroadName: TBDSubmitted by: USERInstructions

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Alternate Builds Instructions Added Medium Alt Build Medium Builds Train Train Alternate Builds 

7725 – Back A

October 29, 2021August 1, 2023 Master Builder 2652 Views

From: 7725: Electric Passenger TrainName: Slip Coach and Station Instructions: View PDF | Download .io File

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EXPLORE MORE OFFICIAL SETS

6661: TV Van (Mobile TV Studio)
Classic Town Official Sets Small Builds Town Town Sets Traffic 

6661: TV Van (Mobile TV Studio)

February 3, 2022February 3, 2022 Master Builder

Year Released: 1991BricklinkInstructions

7303 (1415, Kabaya: Life On Mars 3): Jet Scooter
Life on Mars Life on Mars Sets Official Sets Very Small Builds 

7303 (1415, Kabaya: Life On Mars 3): Jet Scooter

February 25, 2025February 25, 2025 Master Builder
6561: Hot Rod Club
Medium Builds Official Sets Town Town Sets 

6561: Hot Rod Club

November 10, 2019November 10, 2019 Master Builder
2551: Grandma’s Kitchen
Duplo Duplo Sets Official Sets Playhouse Small Builds 

2551: Grandma’s Kitchen

February 27, 2023February 27, 2023 Master Builder
6852: Sonar Security
Jørn Thomsen Official Sets Small Builds Space Space Police II Space Police II Sets 

6852: Sonar Security

September 22, 2020July 29, 2023 Master Builder
1750: Renault Formula 1 Racer
Classic Town Official Sets Race Town Town Sets Very Small Builds 

1750: Renault Formula 1 Racer

July 13, 2021July 13, 2021 Master Builder
6010: Supply Wagon
Castle Castle Sets Lion Knights Official Sets Small Builds 

6010: Supply Wagon

July 13, 2021July 13, 2021 Master Builder
1785: Introducing Crater Critters
Official Sets Small Builds Space Spyrius Spyrius Sets Unitron Unitron Sets 

1785: Introducing Crater Critters

December 28, 2021December 28, 2021 Master Builder
6266: Cannon Cove
Imperial Guards Official Sets Pirates Pirates I Pirates Sets Small Builds 

6266: Cannon Cove

December 27, 2021June 3, 2022 Master Builder
6190: Shark’s Crystal Cave
Aquashark Aquazone Aquazone Sets Large Builds Official Sets 

6190: Shark’s Crystal Cave

July 13, 2021January 20, 2022 Master Builder
6073: Knight’s Castle
Black Falcons Castle Castle Sets Daniel August Krentz Large Builds Official Sets 

6073: Knight’s Castle

October 23, 2019July 29, 2023 Master Builder
6518: Baja Buggy
Classic Town Coast Guard Official Sets Small Builds Town Town Sets 

6518: Baja Buggy

May 23, 2022May 23, 2022 Master Builder
6646: Screaming Patriot
Classic Town Official Sets Race Small Builds Town Town Sets 

6646: Screaming Patriot

March 16, 2022March 16, 2022 Master Builder
6024: Bandit Ambush
Castle Castle Sets Dark Forest Official Sets Small Builds 

6024: Bandit Ambush

April 16, 2021April 16, 2021 Master Builder
1496: Rally Car
Official Sets Small Builds Town Town Sets 

1496: Rally Car

October 20, 2019October 8, 2024 Master Builder
6390: Main Street
Box Marketing Blurb Classic Town Extra Large Builds Official Sets Town Town Sets Traffic 

6390: Main Street

February 10, 2023April 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
  • Belville
  • Building Set with People
  • Castle
  • Duplo
  • Fabuland
  • Harry Potter
  • Holiday and Event
  • LEGOLAND
  • Model Team
  • Pirates
  • Space
  • Star Wars
  • Technic
  • 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 © 2025 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.