Skip to content

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

ABCs Commercials Instructions Added Space Spyrius Unitron Unitron Alternate Builds

1994 Unitron and Spyrius Commercial

August 16, 2023August 18, 2023 Master Builder 4705 Views

Misc
Featured: 6991: Monorail Transport Base, 6939: Saucer Centurion, 6949: Robo-Guardian, 6889: Recon Robot

Build: Unitron Alarm Tower ¹
Instructions: View PDF

Contributions

Name and PDF submitted August 16, 2023 by: cosmic.brick

← 1979 Classic Space Galaxy Explorer Commercial
1993 Ice Planet 2002 and Space Police II with Maniac Commercial →

You May Also Like

Pathfinder

April 14, 2025April 29, 2025 Master Builder

6828: Twin-Winged Spoiler

November 20, 2019May 25, 2020 Master Builder

6837 – Back C

April 2, 2020October 25, 2021 Master Builder

6027 – Back C

February 24, 2022March 18, 2022 Master Builder

6590 – Back C

February 14, 2023February 19, 2023 Master Builder

6930 – Back B

November 18, 2020September 11, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Space Classic Space Sets Official Sets Small Builds Space

6874: Moon Rover

November 6, 2023November 6, 2023 Master Builder

Year Released: 1986BricklinkInstructions

M:Tron M:Tron Sets Official Sets Space Very Small Builds

6811: Pulsar Charger

April 17, 2020April 17, 2020 Master Builder

Adventurers Adventurers Sets Dino Island Official Sets Small Builds

5975: T-Rex Transport

December 29, 2021December 29, 2021 Master Builder

ABCs Official Sets Small Builds UFO UFO Sets

6836: V-Wing Fighter

October 24, 2019March 22, 2025 Master Builder

Castle Castle Sets Official Sets Very Small Builds Wolfpack

1596: Ghostly Hideout

July 25, 2024July 25, 2024 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6234: Renegade’s Raft

May 23, 2022May 23, 2022 Master Builder

Chamber of Secrets Harry Potter Harry Potter Sets Medium Builds Official Sets

4726: Quidditch Practice

February 27, 2023February 27, 2023 Master Builder

ABCs Exploriens Exploriens Sets Official Sets Small Builds Space

6856: Planetary Decoder

April 16, 2021March 22, 2025 Master Builder

Official Sets Space Port Town Town Sets Very Small Builds

6452: Mini Rocket Launcher

October 3, 2024October 3, 2024 Master Builder

Futuron Official Sets Space Supplemental

6921: Monorail Accessory Track

September 1, 2023September 1, 2023 Master Builder

Holiday and Event Holiday and Event Sets Official Sets Very Small Builds

1627: Santa Polybag

May 2, 2023May 2, 2023 Master Builder

Classic Space Classic Space Sets Mads Rye Official Sets Small Builds

6882: Walking Astro Grappler

September 30, 2019April 2, 2025 Master Builder

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

7130: Snowspeeder

June 28, 2022June 28, 2022 Master Builder

Classic Town Extra Large Builds Gas Station Official Sets Town Town Sets Wrecker

6378: Service Station

February 25, 2023February 26, 2023 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6633: Family Car

April 19, 2021April 19, 2021 Master Builder

Exploriens Exploriens Sets Extra Large Builds Official Sets

6982: Explorien Starship

November 9, 2019December 13, 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
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.