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

Classic Space Classic Space Sets Official Sets Small Builds

6825: Cosmic Comet

September 12, 2019March 18, 2024 Master Builder 5027 Views

Year Released: 1985
Bricklink

Back A

Back A

6940: Alien Moon Stalker →

You May Also Like

6670 – Back A

November 19, 2020January 26, 2022 Master Builder

6829 – Back B

April 14, 2023April 17, 2024 Master Builder

6881 – Back D

October 2, 2019November 18, 2021 Master Builder

6340: Hook & Ladder

December 29, 2021December 29, 2021 Master Builder

6970 – Back D

January 20, 2021January 20, 2021 Master Builder

4741: Blacktron Super Vehicle Value 3-Pack

February 19, 2026February 20, 2026 Master Builder

EXPLORE MORE OFFICIAL SETS

Official Sets Small Builds Star Wars Star Wars Sets

7115: Gungan Patrol

January 12, 2021January 12, 2021 Master Builder

Year Released: 2000BricklinkInstructions

Airport Classic Town Medium Builds Official Sets Town Town Sets

6368: Jet Airliner

January 21, 2021January 21, 2021 Master Builder

Castle Castle Sets Official Sets Royal Knights Small Builds

6036: Skeleton Surprise

February 28, 2023February 28, 2023 Master Builder

Castle Castle Sets Forestmen Official Sets Small Builds

1680: Hay Cart with Smugglers

August 12, 2024September 24, 2024 Master Builder

Basic Large Builds Official Sets Universal Building Set

535: Basic Building Set Tote Pack

May 15, 2023May 16, 2023 Master Builder

Castle Castle Sets Official Sets Royal Knights Very Small Builds

1752: Boat with Armor

April 10, 2023April 10, 2023 Master Builder

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

4705: Snape’s Class

April 16, 2021April 16, 2021 Master Builder

Chamber of Secrets Extra Large Builds Harry Potter Harry Potter Sets Official Sets

4730: The Chamber of Secrets

January 23, 2024January 23, 2024 Master Builder

Castle Castle Sets Fright Knights Official Sets Small Builds

6037: Witch’s Windship

December 29, 2021December 29, 2021 Master Builder

Episode I Official Sets Small Builds Star Wars Star Wars Sets

7101: Lightsaber Duel

October 28, 2021October 28, 2021 Master Builder

ABCs Large Builds Launch Command Official Sets Town Town Sets

6614: Launch Evac 1

June 30, 2023February 22, 2025 Master Builder

Imperial Soldiers Official Sets Pirates Pirates I Pirates Sets Small Builds

6265: Sabre Island

May 28, 2024May 28, 2024 Master Builder

Classic Town Hospital Large Builds Official Sets Town Town Sets

6380: Emergency Treatment Center (St. Mary’s Hospital)

July 15, 2022July 15, 2022 Master Builder

Classic Town Harbor Medium Builds Official Sets Town Town Sets Wrecker

6698: RV with Speedboat

June 28, 2022June 28, 2022 Master Builder

12V Large Builds Official Sets Town Train Train Sets

7725: Electric Passenger Train

December 29, 2021July 26, 2022 Master Builder

Medium Builds Official Sets Technic Technic Sets

854: Go-Kart

August 28, 2023January 6, 2025 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 © 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.