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 Basic Instructions Added LEGOLAND Alternate Builds Medium Alt Build Medium Builds Universal Building Set Universal Building Set Alternate Builds

720 – Instructions C

February 9, 2024February 9, 2024 Master Builder 4788 Views

From: 720: Basic Building Set
Name: Locomotive ¹
Instructions: View PDF

Contributions

Name and PDF submitted on February 7, 2024 by: se1977

← 720 – Instructions B
4789: AT Aquatic Mech →

You May Also Like

6845 – Back A

June 23, 2025June 24, 2025 Master Builder

6041: Armor Shop

September 25, 2024September 25, 2024 Master Builder

6811 – Back C

April 17, 2020March 14, 2025 Master Builder

1558 – Back C

December 18, 2021December 18, 2021 Master Builder

6950 – Back A

June 16, 2022June 28, 2022 Master Builder

6416: Poolside Paradise

June 28, 2022June 28, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

Castle Castle Sets Forestmen Large Builds Official Sets

6077-2: Forestmen’s River Fortress

April 19, 2021February 2, 2022 Master Builder

Year Released: 1989BricklinkInstructions

Medium Builds Official Sets Town Town Sets

6551: Checkered Flag 500

November 21, 2023November 21, 2023 Master Builder

Gears Medium Builds Official Sets Universal Building Set

801: Gear Set

December 17, 2025December 17, 2025 Master Builder

Medium Builds Official Sets Technic Technic Sets

8812: Aero Hawk II

January 22, 2026January 22, 2026 Master Builder

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

7144: Slave I

October 28, 2021October 28, 2021 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

6845: Cosmic Charger

January 14, 2025January 14, 2025 Master Builder

Aquanauts Aquazone Aquazone Sets Official Sets Very Small Builds

1749: Paravane

July 26, 2020July 26, 2020 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6821: Shovel Buggy (Geological Inspection)

February 17, 2026February 17, 2026 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

1580: Lunar Scout

July 12, 2021July 12, 2021 Master Builder

Large Builds Official Sets Star Wars Star Wars Sets

7150: TIE Fighter & Y-wing

April 21, 2026April 21, 2026 Master Builder

Harry Potter Harry Potter Sets Official Sets Small Builds Sorcerer's Stone

4702: The Final Challenge

August 8, 2024August 8, 2024 Master Builder

Batman I BATMAN™ BATMAN™ Sets Medium Builds Official Sets

7780: The Batboat: Hunt for Killer Croc

March 27, 2026March 27, 2026 Master Builder

ABCs Futron Sets Futuron Large Builds Official Sets Space

6932: Stardefender 200

September 24, 2019August 15, 2023 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6237: Pirates’ Plunder

February 8, 2022February 8, 2022 Master Builder

Extra Large Builds Imperial Guards Official Sets Pirates Pirates I Pirates Sets

6277: Imperial Trading Post

January 6, 2022January 6, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6823: Surface Transport

September 30, 2019September 30, 2019 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.