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 5784 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

Viva’s Space Scooter

March 28, 2026March 28, 2026 Master Builder

Book 6000 – Page 60-61

January 15, 2022February 5, 2026 Master Builder

6847 – Back C

January 29, 2025January 29, 2025 Master Builder

6822 – Back C

March 12, 2024March 12, 2024 Master Builder

6829 – Back B

April 14, 2023April 17, 2024 Master Builder

6880 – Back A

June 1, 2022June 2, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

Castle Castle Sets Lion Knights Official Sets Small Builds

6017: King’s Oarsman

September 24, 2024September 24, 2024 Master Builder

Year Released: 1987BricklinkInstructions

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6802: Space Probe

October 10, 2022October 10, 2022 Master Builder

Classic Town Official Sets Police Town Town Sets Very Small Builds

600: Police Patrol

July 11, 2024July 11, 2024 Master Builder

ABCs Official Sets Small Builds Space UFO UFO Sets

6829: Radon Rover

August 4, 2020March 22, 2025 Master Builder

Medium Builds Official Sets Time Cruisers Time Cruisers Sets

6496: Whirling Time Warper

March 18, 2025March 18, 2025 Master Builder

Classic Town Construction Official Sets Town Town Sets Very Small Builds

6512: Landscape Loader

May 10, 2022May 10, 2022 Master Builder

Airport Classic Town Official Sets Town Town Sets Very Small Builds

1630: Helicopter

April 8, 2025April 8, 2025 Master Builder

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

4708: Hogwarts Express

July 13, 2021August 8, 2024 Master Builder

ABCs Classic Space Classic Space Sets Large Builds Official Sets Space

6783: Sonar Transmitting Cruiser

May 8, 2022August 15, 2023 Master Builder

Medium Builds Official Sets Technic Technic Sets

854: Go-Kart

August 28, 2023January 6, 2025 Master Builder

Box Story Islanders Medium Builds Official Sets Pirates Pirates I Pirates Sets

6278: Enchanted Island

February 20, 2025February 20, 2025 Master Builder

Classic Town Official Sets Race Town Town Sets Very Small Builds

1096: Race Buggy

July 26, 2020July 26, 2020 Master Builder

Airport Classic Town Large Builds Official Sets Town Town Sets

1687: Midnight Transport

January 25, 2022January 25, 2022 Master Builder

Island Xtreme Stunts Island Xtreme Stunts Sets Medium Builds Official Sets

6736: Beach Lookout

April 7, 2026April 7, 2026 Master Builder

Extra Large Builds Model Team Model Team Sets Official Sets

5581: Magic Flash

January 2, 2024January 2, 2024 Master Builder

Large Builds LEGOLAND Official Sets Space

565: Moon Landing

July 11, 2024July 11, 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.