Skip to content

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
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

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

7725 – Inside A

October 14, 2022August 1, 2023 Master Builder 4860 Views

From: 7725: Electric Passenger Train
Name: Steeplecab Shunter, Station & Signalbox ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted on October 14, 2022 by: SDLgo9

← 7725 – Back B
6926 – Back A →

You May Also Like

1858 – Back A

July 8, 2022July 11, 2022 Master Builder

5581 – Back A

January 31, 2026March 4, 2026 Master Builder

6541 – Back D

February 5, 2023February 12, 2023 Master Builder

7124 – Back A

October 17, 2025October 22, 2025 Master Builder

4591 – Back B

February 21, 2025February 21, 2025 Master Builder

Book 6000 – Page 50-51

November 7, 2021February 9, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Episode IV/V/VI Large Builds Official Sets Star Wars Star Wars Sets

7166: Imperial Shuttle

April 16, 2021September 4, 2023 Master Builder

Year Released: 2001BricklinkInstructions

Blacktron II Blacktron II Sets Official Sets Space Very Small Builds

1694: Galactic Scout

February 9, 2021February 9, 2021 Master Builder

9V Medium Builds Official Sets Train Train Sets

4537: Twin Tank Transport

August 10, 2026August 10, 2026 Master Builder

Episode I Official Sets Small Builds Star Wars Star Wars Sets

7115: Gungan Patrol

January 12, 2021April 22, 2026 Master Builder

Adventurers Adventurers Sets Box Story Official Sets Orient Expedition Small Builds

7411: Tygurah’s Roar

December 16, 2025December 16, 2025 Master Builder

Jørn Thomsen Official Sets Small Builds Spyrius Spyrius Sets

6835: Saucer Scout

November 9, 2019July 29, 2023 Master Builder

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

Airport Classic Town Extra Large Builds Official Sets Town Town Sets

6396: International Jetport

July 14, 2021July 14, 2021 Master Builder

Classic Space Classic Space Sets Large Builds Official Sets

6972: Polaris I Space Lab

September 12, 2019November 21, 2023 Master Builder

Box Story Large Builds Official Sets Pirates Pirates I Pirates Sets

6273: Rock Island Refuge

July 4, 2024July 4, 2024 Master Builder

Box Story Large Builds Official Sets Pirates Pirates I Pirates Sets

6281: Pirates Perilous Pitfall

February 21, 2025February 21, 2025 Master Builder

Island Xtreme Stunts Island Xtreme Stunts Sets Large Builds Official Sets

6740: Xtreme Tower

April 16, 2026April 16, 2026 Master Builder

Classic Town Large Builds Official Sets Town Town Sets Traffic

1966: Car Repair Shop

May 16, 2025May 16, 2025 Master Builder

Official Sets Space Port Town Town Sets Very Small Builds

6458: Satellite with Astronaut

December 17, 2025December 17, 2025 Master Builder

Castle Castle Sets Dragon Knights Large Builds Official Sets

6082: Fire Breathing Fortress

January 13, 2022January 13, 2022 Master Builder

Bonus/Value Pack Sets Bonus/Value Packs Official Sets Race Small Builds Town

1978-2: Town Value Pack

October 10, 2024October 10, 2024 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

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.