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 5811 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

BrickJournal Issue 6 Volume 2 Page 43 – Concept 1

February 23, 2023August 15, 2023 Master Builder

1498: Spy-Bot

March 11, 2024March 11, 2024 Master Builder

6903: Bug Blaster

October 4, 2024October 4, 2024 Master Builder

6848 – Back C

April 16, 2021March 11, 2024 Master Builder

6984 – Back B

March 18, 2022March 18, 2022 Master Builder

6986 – Back C

May 26, 2023July 11, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Episode IV/V/VI Extra Large Builds Official Sets Star Wars Star Wars Sets

6210: Jabba’s Sail Barge

February 1, 2024February 1, 2024 Master Builder

Year Released: 2006BricklinkInstructions

Classic Town Official Sets Supplemental Town

6347: Monorail Accessory Track

August 27, 2023August 27, 2023 Master Builder

Classic Town Fire Medium Builds Official Sets Town Town Sets

6480: Hook and Ladder Truck

July 8, 2022July 8, 2022 Master Builder

Box Plus Harry Potter Harry Potter Sets Official Sets Playscape/Play Stage Box Small Builds Sorcerer's Stone

4723: Diagon Alley Shops

July 10, 2024October 8, 2024 Master Builder

Classic Town Extra Large Builds Fire Official Sets Town Town Sets

6389: Fire Control Center

January 24, 2022January 24, 2022 Master Builder

Box Plus Different Box Versions Exploriens Exploriens Sets Medium Builds Official Sets

1737: Scorpion Detector (Limited Edition)

March 5, 2026March 5, 2026 Master Builder

Large Builds LL Link Official Sets Police Town Town Jr Town Sets

6332: Command Post Central

June 4, 2024July 11, 2024 Master Builder

Bjarne Tveskov Futron Sets Futuron Official Sets Space Very Small Builds

6830: Space Patroller

April 8, 2020July 29, 2023 Master Builder

Large Builds Official Sets Time Cruisers Time Cruisers Sets

6493: Flying Time Vessel

July 14, 2021December 29, 2021 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 Construction Medium Builds Official Sets Town Town Sets

6481: Construction Crew

April 9, 2020July 4, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

886: Space Buggy

January 25, 2024March 2, 2026 Master Builder

Black Knights Castle Castle Sets Medium Builds Official Sets

6057: Sea Serpent

April 14, 2025April 14, 2025 Master Builder

Bonus/Value Pack Sets Bonus/Value Packs Official Sets Race Small Builds Town

1978-2: Town Value Pack

October 10, 2024October 10, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6842: Shuttle Craft

October 21, 2019October 21, 2019 Master Builder

Belville Belville Sets Lion Knights Official Sets Playhouse Very Small Builds

5810: Vanity Fun

April 10, 2021April 10, 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.