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

Concepts and Prototypes Space

Alien Prototype

February 23, 2023February 12, 2025 Master Builder 6058 Views

Misc
Theme: Space

BrickJournal: Issue 6 Volume 2 – Page 41
TwoMorrows Publishing
Photo Credit: Niels Milan Pedersen’s personal LEGO archives

Build: TBD
Submitted By: USER
Instructions

← Space Police II Concept
BrickJournal Issue 6 Volume 2 Page 42 – Concept 1 →

You May Also Like

6847 – Back C

January 29, 2025January 29, 2025 Master Builder

6907 – Back C

October 3, 2024October 3, 2024 Master Builder

Space Show

February 24, 2025February 24, 2025 Master Builder

6987 – Back B

March 29, 2022March 2, 2026 Master Builder

1793: Space Station Zenon

April 19, 2021April 19, 2021 Master Builder

6956 – Back A

September 23, 2019October 25, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

Chamber of Secrets Harry Potter Harry Potter Sets Medium Builds Official Sets

4726: Quidditch Practice

February 27, 2023February 27, 2023 Master Builder

Year Released: 2002BricklinkInstructions

Exploriens Exploriens Sets Large Builds Official Sets

6958: Android Base

November 9, 2019April 16, 2021 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

891: Two-Man Scooter

March 15, 2024March 15, 2024 Master Builder

ABCs Airport Classic Town Extra Large Builds Official Sets Town Town Sets

6392: Airport

June 28, 2022August 16, 2023 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets Space

6901: Mobile Lab

September 11, 2020August 4, 2023 Master Builder

Castle Castle Sets Official Sets Small Builds Wolfpack

6038: Wolfpack Renegades

October 14, 2021October 14, 2021 Master Builder

Adventurers Adventurers Sets Jungle Official Sets Small Builds

5925: Pontoon Plane

March 5, 2026March 5, 2026 Master Builder

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

4704: The Chamber of the Winged Keys

May 28, 2024May 28, 2024 Master Builder

Castle Castle Sets Forestmen Official Sets Small Builds

1680: Hay Cart with Smugglers

August 12, 2024September 24, 2024 Master Builder

Classic Town Medium Builds Official Sets Town Town Sets Traffic

379: Bus Station

April 10, 2021May 31, 2023 Master Builder

Aquazone Aquazone Sets Large Builds Official Sets Stingrays

6160: Sea Scorpion

October 29, 2019April 4, 2020 Master Builder

Blacktron II Blacktron II Alternate Builds Blacktron II Sets Bonus/Value Pack Sets Bonus/Value Packs Large Builds Official Sets Space Super Model

4741: Blacktron Super Vehicle Value 3-Pack

February 19, 2026February 20, 2026 Master Builder

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

6260: Shipwreck Island

April 9, 2020July 29, 2023 Master Builder

Official Sets Rock Raiders Rock Raiders Sets Small Builds

4940: Granite Grinder

April 4, 2020April 4, 2020 Master Builder

Blacktron Blacktron Sets Bonus/Value Packs Castle Castle Sets Classic Town Forestmen Official Sets Small Builds Space Town Traffic

1675: Legoland Triple Pack

October 12, 2021October 12, 2021 Master Builder

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

4501: Mos Eisley Cantina

December 29, 2021December 29, 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
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.