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
- 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 Classic Space Classic Space Alternate Builds Instructions Added Medium Alt Build Medium Builds Space

920 – Back C

February 2, 2021October 25, 2021 Master Builder 3711 Views

From: 920 (483): Alpha-1 Rocket Base
Name: Alpha-1 Moving Laboratory ¹
Instructions: View PDF

Contributions

Name and PDF Instructions submitted on January 31, 2021 by: plastic.ati

← 920 – Back B
920 – Back D →

You May Also Like

6276 – Back D

December 22, 2023January 1, 2024 Master Builder

6543 – Back B

July 22, 2022July 22, 2022 Master Builder

1731 – Back A

April 6, 2020August 1, 2023 Master Builder

6334 – Back D

June 27, 2022June 27, 2022 Master Builder

6356 – Back A

March 16, 2022March 16, 2022 Master Builder

6940 – Inside A

March 29, 2023March 30, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Box Story Castle Castle Sets Extra Large Builds Fright Knights Official Sets

6097: Night Lord’s Castle

March 1, 2023March 17, 2025 Master Builder

Year Released: 1997BricklinkInstructions The box reads, “Medieval life will never be the same! The Bat Lord and Wicked Witch have cast a

Bjarne Tveskov Futron Sets Futuron Official Sets Small Builds

6850: Auxiliary Patroller

September 24, 2019July 29, 2023 Master Builder

ABCs M:Tron M:Tron Sets Medium Builds Official Sets

6923: Particle Ionizer

October 1, 2019August 13, 2023 Master Builder

Airport Classic Town Official Sets Town Town Sets Very Small Builds

1630: Helicopter

April 8, 2025April 8, 2025 Master Builder

Medium Builds Official Sets Studio Sets Studios

1381: Vampire’s Crypt

July 2, 2024July 2, 2024 Master Builder

Bjarne Tveskov Bonus/Value Pack Sets Futron Sets Futuron Official Sets Space Very Small Builds

1620: Astro Dart

September 6, 2023September 7, 2023 Master Builder

Basic Set Duplo Duplo Sets Official Sets Very Small Builds

2333: Animal

May 16, 2023May 16, 2023 Master Builder

Extra Large Builds Harry Potter Harry Potter Sets Official Sets Sorcerer's Stone

4709: Hogwarts Castle

April 16, 2021July 13, 2021 Master Builder

Classic Town Large Builds Official Sets Police Town Town Sets

6483: Coastal Patrol

December 29, 2021December 29, 2021 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

1580: Lunar Scout

July 12, 2021July 12, 2021 Master Builder

Niels Milan Pedersen Official Sets Pirates Pirates I Pirates Sets Small Builds

6260: Shipwreck Island

April 9, 2020July 29, 2023 Master Builder

Classic Town Construction Official Sets Town Town Sets Very Small Builds

6532: Diesel Dumper

November 19, 2020November 19, 2020 Master Builder

Classic Space Classic Space Sets Large Builds Official Sets

6929: Starfleet Voyager

September 22, 2019April 3, 2023 Master Builder

Building Classic Town Medium Builds Official Sets Town Town Sets

6370: Weekend Home

February 17, 2023February 19, 2023 Master Builder

BIONICLE BIONICLE Sets Extra Large Builds Official Sets Playsets

8927: Toa Terrain Crawler

March 3, 2026March 3, 2026 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

6822: Space Digger

March 12, 2024March 12, 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
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.