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

ABCs Commercials Instructions Added Space Spyrius Unitron Unitron Alternate Builds

1994 Unitron and Spyrius Commercial

August 16, 2023August 18, 2023 Master Builder 6098 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

6562 – Back D

August 31, 2022September 19, 2022 Master Builder

6871 – Back D

September 27, 2019October 25, 2021 Master Builder

6848: Interplanetary Shuttle

March 11, 2024March 11, 2024 Master Builder

1620: Astro Dart

September 6, 2023September 7, 2023 Master Builder

4702 – Back B

August 8, 2024August 8, 2024 Master Builder

6957 – Back B

August 31, 2022December 20, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Town Large Builds Official Sets Police Town Town Sets

6384: Police Station

December 28, 2021December 28, 2021 Master Builder

Year Released: 1983BricklinkInstructions

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

4502: X-wing Fighter (Dagobah)

May 15, 2023May 15, 2023 Master Builder

ABCs Large Builds Official Sets Robo Force Robo Force Sets Space

2152: Robo Raptor

January 14, 2021March 22, 2025 Master Builder

Classic Town Large Builds Official Sets Police Town Town Sets

6483: Coastal Patrol

December 29, 2021December 29, 2021 Master Builder

Drome Racers Official Sets Racers Very Small Builds

4592: Red Monster

November 14, 2025November 14, 2025 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6232: Skeleton Crew

July 13, 2021July 13, 2021 Master Builder

Bjarne Tveskov Futron Sets Futuron Official Sets Small Builds

6875: Hovercraft

September 16, 2019October 16, 2024 Master Builder

Blacktron II Blacktron II Alternate Builds Blacktron II Sets Jørn Thomsen Large Builds Official Sets Space Super Model

6861: Blacktron Super Model

July 29, 2023July 29, 2023 Master Builder

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

Adventurers Adventurers Sets Desert Medium Builds Official Sets

5948: Desert Expedition

October 8, 2024October 8, 2024 Master Builder

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

4726: Quidditch Practice

February 27, 2023February 27, 2023 Master Builder

9V Large Builds Official Sets Town Train Train Sets

4555: Cargo Station

January 2, 2024January 2, 2024 Master Builder

Medium Builds Official Sets Western Western Sets

6764: Sheriff’s Lock-Up

September 1, 2024September 1, 2024 Master Builder

Bonus/Value Pack Sets Bonus/Value Packs Exploriens Exploriens Sets Official Sets Small Builds Space UFO UFO Sets

UFO Value Pack (VP-5)

December 10, 2025March 14, 2026 Master Builder

Airport Classic Town Official Sets Small Builds Town Town Sets

6341: Gas N’ Go Flyer

December 27, 2021December 27, 2021 Master Builder

Box Story Large Builds Ninja Ninja Alternate Builds Ninja Official Sets Official Sets

6088: Robber’s Retreat

January 24, 2022April 3, 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.