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
- Train
- 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 6458 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

2154 – Inside A

June 14, 2023June 15, 2023 Master Builder

6901 – Back D

August 28, 2023March 14, 2025 Master Builder

6807 – Back B

November 21, 2023November 21, 2023 Master Builder

Space Sunglasses

February 6, 2025March 22, 2025 Master Builder

897 – Back C

September 16, 2019October 25, 2021 Master Builder

918 – Back B

April 27, 2020April 27, 2020 Master Builder

EXPLORE MORE OFFICIAL SETS

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

4766: Graveyard Duel

May 16, 2023December 16, 2025 Master Builder

Year Released: 2005BricklinkInstructions

Classic Space Classic Space Sets Large Builds Official Sets

6929: Starfleet Voyager

September 22, 2019April 3, 2023 Master Builder

Box Story Duplicate Set Number Medium Builds Ninja Ninja Alternate Builds Ninja Official Sets Official Sets

6083-2: Samurai Stronghold

December 16, 2025December 16, 2025 Master Builder

Basic Official Sets Small Builds Universal Building Set

385-2: Build-N-Store Chest

September 8, 2025September 8, 2025 Master Builder

Medium Builds Official Sets Space Unitron Unitron Sets

1789: Star Hawk II

July 18, 2020July 18, 2020 Master Builder

Island Xtreme Stunts Island Xtreme Stunts Sets Medium Builds Official Sets

6739: Truck & Stunt Trikes

April 16, 2026April 16, 2026 Master Builder

Episode I Official Sets Star Wars Star Wars Sets Very Small Builds

7203: Jedi Defense I

June 27, 2022June 27, 2022 Master Builder

Islanders Official Sets Pirates Pirates I Pirates Sets Small Builds

6256: Islander Catamaran

June 6, 2022June 6, 2022 Master Builder

Classic Town Medium Builds Official Sets Town Town Sets Traffic

379: Bus Station

April 10, 2021May 31, 2023 Master Builder

Basic Happy Meal McDonalds Official Sets Polybag Universal Building Set Very Small Builds

1912: Car (Set A, 1)

April 1, 2025April 1, 2025 Master Builder

Classic Town Large Builds Official Sets Town Town Sets Traffic

1966: Car Repair Shop

May 16, 2025May 16, 2025 Master Builder

Divers Large Builds Official Sets Town Town Sets

6441: Deep Reef Refuge

November 6, 2019December 29, 2021 Master Builder

Classic Space Classic Space Sets Duplicate Set Number Official Sets Small Builds Space

6848: Interplanetary Shuttle

March 11, 2024March 11, 2024 Master Builder

Large Builds Launch Command Official Sets Town Town Sets

6544: Shuttle Transcon 2

July 20, 2022July 20, 2022 Master Builder

Medium Builds Official Sets Technic Technic Sets

8812: Aero Hawk II

January 22, 2026January 22, 2026 Master Builder

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

6781: SP-Striker

April 19, 2021July 29, 2023 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
Train
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.