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 3720 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

6351 – Back E

July 14, 2021July 14, 2021 Master Builder

918 – Bottom

January 6, 2026January 6, 2026 Master Builder

6870: Space Probe Launcher

January 12, 2021January 12, 2021 Master Builder

2333 – Back A

May 16, 2023May 16, 2023 Master Builder

6541 – Back G

February 5, 2023February 13, 2023 Master Builder

6195 – Back D

January 20, 2022January 20, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

Box Story Large Builds Official Sets Pirates Pirates I Pirates Sets

6281: Pirates Perilous Pitfall

February 21, 2025February 21, 2025 Master Builder

Year Released: 1997BricklinkInstructions The box reads, “Captain Redbeard and his renegade Pirates want to get their hands on the Imperial

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

6641: 4-Wheelin’ Truck (Four Wheelin’ Truck)

May 7, 2022May 7, 2022 Master Builder

Castle Castle Sets Knights Kingdom I Official Sets Small Builds

4818: Dragon Rider

October 8, 2024October 8, 2024 Master Builder

Bonus/Value Pack Sets Castle Castle Sets Forestmen Official Sets Small Builds

1974-3: Smuggler’s Hayride

September 7, 2023September 8, 2023 Master Builder

Bjarne Tveskov Blacktron II Blacktron II Sets Official Sets Space Very Small Builds

6812: Grid Trekkor

February 12, 2021July 29, 2023 Master Builder

Bonus/Value Pack Sets Classic Town Official Sets Small Builds Town Town Sets Traffic

1876: Soil Scooper

October 11, 2021September 7, 2023 Master Builder

Classic Town Official Sets Recreation Small Builds Town Town Sets

6514: Trail Ranger

May 10, 2022May 10, 2022 Master Builder

Gas Station Medium Builds Official Sets Town Town Jr Town Sets

6548: Octan Gas Station

October 12, 2021October 12, 2021 Master Builder

Exo-Force Medium Builds Official Sets

7704: Sonic Phantom

April 28, 2023April 28, 2023 Master Builder

Drome Racers Official Sets Racers Small Builds

4594: Maverick Sprinter & Hot Arrow

February 21, 2025February 21, 2025 Master Builder

ABCs Aquanauts Aquazone Aquazone Sets Box Plus Official Sets Playscape/Play Stage Box Small Builds

1728 (6145): Crystal Crawler {with Aqua Playscape}

August 1, 2023March 22, 2025 Master Builder

Castle Castle Sets Dragon Knights Official Sets Very Small Builds

1736 (1746 and 2891): Wizard’s Cart

September 24, 2024October 8, 2024 Master Builder

12V Large Builds Official Sets Town Train Train Sets

7725: Electric Passenger Train

December 29, 2021July 26, 2022 Master Builder

Classic Town Medium Builds Official Sets Recreation Town Town Sets

1817: Sea Plane with Hut and Boat

January 12, 2022January 12, 2022 Master Builder

ABCs Aquanauts Aquazone Aquazone Sets Medium Builds Official Sets

6175: Crystal Explorer Sub

January 20, 2022March 22, 2025 Master Builder

Adventurers Adventurers Sets Dino Island Official Sets Small Builds

5920: Island Racer

July 26, 2020July 26, 2020 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.