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 5975 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

928 – Back F

November 25, 2020October 13, 2021 Master Builder

UFO Value Pack (VP-5)

December 10, 2025March 14, 2026 Master Builder

720 – Inside A

February 8, 2024February 9, 2024 Master Builder

Book 6000 – Page 22-23

November 6, 2021February 8, 2024 Master Builder

2153: Robo Stalker

June 15, 2023April 3, 2024 Master Builder

6770: Lunar Transporter Patroller

September 11, 2023September 11, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

2 in 1 Medium Builds Official Sets Technic Technic Sets

42089: Power Boat

August 28, 2026August 28, 2026 Master Builder

Year Released: 2019BricklinkInstructions

BIONICLE BIONICLE Sets Extra Large Builds Official Sets Warriors

8922: Gadunka

March 6, 2026March 6, 2026 Master Builder

Jørn Thomsen Official Sets Small Builds Space Space Police II Space Police II Sets

6852: Sonar Security

September 22, 2020July 29, 2023 Master Builder

Large Builds Model Team Model Team Sets Official Sets

5540: Formula I Racer

February 10, 2026March 4, 2026 Master Builder

Ice Planet 2002 Ice Planet 2002 Sets Official Sets Small Builds Space

6879: Blizzard Baron

November 20, 2019July 29, 2023 Master Builder

Classic Town Large Builds Official Sets Police Town Town Sets

6348: Surveillance Squad

June 23, 2026June 23, 2026 Master Builder

Box Plus Harry Potter Harry Potter Sets Official Sets Playscape/Play Stage Box Small Builds Sorcerer's Stone

4723: Diagon Alley Shops

July 10, 2024October 8, 2024 Master Builder

Box Story Cowboys Jørn Thomsen Large Builds Official Sets Western Western Sets

6761: Bandit’s Secret Hide-Out

December 29, 2021April 3, 2024 Master Builder

9V Medium Builds Official Sets Train Train Sets

4536: Blue Hopper Car

July 10, 2026July 10, 2026 Master Builder

Insectoids Insectoids Sets Large Builds Official Sets

6919: Planetary Prowler

November 9, 2019November 9, 2019 Master Builder

Classic Space Classic Space Sets Mads Rye Official Sets Small Builds

6882: Walking Astro Grappler

September 30, 2019April 2, 2025 Master Builder

Classic Town Off-Road Official Sets Small Builds Town Town Sets

6659: TV Camera Crew

April 10, 2021April 10, 2021 Master Builder

Castle Castle Sets Official Sets Royal Knights Very Small Builds

1752: Boat with Armor

April 10, 2023April 10, 2023 Master Builder

Classic Town Hospital Large Builds Official Sets Town Town Sets

1896: Trauma Team

April 4, 2022April 4, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6824: Space Dart I

September 30, 2019October 6, 2019 Master Builder

Black Falcons Castle Castle Sets Official Sets Small Builds

6035: Castle Guard

December 27, 2021December 27, 2021 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.