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

Classic Space Classic Space Sets Large Builds Official Sets

6972: Polaris I Space Lab

September 12, 2019November 21, 2023 Master Builder 7145 Views

Year Released: 1987
Bricklink
Instructions

*Alternate Build Connection: 1988 Classic Space and Blacktron with Zack Commercial

Back A

Back A

6940: Alien Moon Stalker →

You May Also Like

6673: Solo Trainer

November 18, 2020November 18, 2020 Master Builder

7194: Yoda – UCS

March 10, 2025March 10, 2025 Master Builder

Book 6000 – Page 36-37

February 1, 2022February 2, 2022 Master Builder

3056: Go-Kart

July 26, 2020July 26, 2020 Master Builder

6375: Trans Air Carrier

November 20, 2020November 20, 2020 Master Builder

1626: Angel Polybag

March 4, 2023March 4, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Town Large Builds Official Sets Police Town Town Sets

381: Police Headquarters

July 27, 2023July 27, 2023 Master Builder

Year Released: 1979BricklinkInstructions

Bjarne Tveskov Large Builds Official Sets Space Space Police I Space Police I Sets

6781: SP-Striker

April 19, 2021July 29, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6881: Lunar Rocket Launcher

October 2, 2019October 2, 2019 Master Builder

Episode IV/V/VI Official Sets Small Builds Star Wars Star Wars Sets

7127: Imperial AT-ST

December 29, 2021December 29, 2021 Master Builder

Blacktron II Blacktron II Sets Jørn Thomsen Medium Builds Official Sets Space

6933: Spectral Starguider

April 13, 2020February 11, 2025 Master Builder

Castle Castle Sets Fright Knights Medium Builds Official Sets

6047: Traitor Transport

November 18, 2021November 18, 2021 Master Builder

Classic Space Classic Space Sets Large Builds Official Sets Space

6970: Beta-1 Command Base

January 20, 2021January 20, 2021 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

Extra Large Builds Goblet of Fire Harry Potter Harry Potter Sets Official Sets

4768: The Durmstrang Ship

May 16, 2023May 16, 2023 Master Builder

Classic Town Food and Drink Medium Builds Official Sets Town Town Sets

1620-2: Factory

October 21, 2021October 21, 2021 Master Builder

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

6675: Road & Trail 4×4

March 20, 2023March 20, 2023 Master Builder

Drome Racers Official Sets Racers Small Builds

4593: Zero Hurricane & Red Blizzard

January 27, 2025February 21, 2025 Master Builder

Airport Classic Town Medium Builds Official Sets Town Town Sets

6368: Jet Airliner

January 21, 2021January 21, 2021 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6872: Xenon X-Craft

October 19, 2019October 19, 2019 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6645: Street Sweeper

November 20, 2020November 20, 2020 Master Builder

Extra Large Builds Official Sets Star Wars Star Wars Sets

7190: Millennium Falcon

November 14, 2019November 14, 2019 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.