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

Blacktron II Prototypes

February 23, 2023February 11, 2025 Master Builder 7184 Views

Misc
Theme: Blacktron II

BrickJournal Issue 6 Volume 2 – Page 42
TwoMorrows Publishing
Photo Credit: Niels Milan Pedersen’s personal LEGO archives

Build 1: TBD
Submitted By: USER
Instructions:

Build 2: TBD
Submitted By: USER
Instructions:

Build 3: TBD
Submitted By: USER
Instructions:

← BrickJournal Issue 6 Volume 2 Page 42 – Concept 1
BrickJournal Issue 6 Volume 2 Page 43 – Concept 1 →

You May Also Like

6955: Space Lock-Up Isolation Base

February 3, 2021April 3, 2024 Master Builder

6848 – Back B

April 16, 2021March 11, 2024 Master Builder

6854 – Back C

August 31, 2022September 19, 2022 Master Builder

924 – Back C

August 24, 2024August 27, 2024 Master Builder

6847 – Back B

January 29, 2025January 29, 2025 Master Builder

7310 – Back A

April 16, 2021April 16, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

Basic Extra Large Builds Official Sets Universal Building Set

725: Basic Building Set

July 22, 2024July 22, 2024 Master Builder

Year Released: 1990BricklinkInstructions

Medium Builds Official Sets Town Town Sets

6551: Checkered Flag 500

November 21, 2023November 21, 2023 Master Builder

Box Story Classic Town Fire Large Builds Official Sets Town Town Sets

6571: Flame Fighters

August 10, 2026August 10, 2026 Master Builder

Islanders Official Sets Pirates Pirates I Pirates Sets Small Builds

6256: Islander Catamaran

June 6, 2022June 6, 2022 Master Builder

ABCs Classic Space Classic Space Sets Medium Builds Official Sets Space

6931: FX-Star Patroller

January 12, 2021March 20, 2025 Master Builder

Episode II Large Builds Official Sets Star Wars Star Wars Sets

7133: Bounty Hunter Pursuit

July 14, 2021July 14, 2021 Master Builder

Box Story Large Builds Official Sets Pirates Pirates I Pirates Sets

6273: Rock Island Refuge

July 4, 2024July 4, 2024 Master Builder

Airport Classic Town Official Sets Town Town Sets Very Small Builds

1630: Helicopter

April 8, 2025April 8, 2025 Master Builder

Classic Town Construction Official Sets Town Town Sets Very Small Builds

6512: Landscape Loader

May 10, 2022May 10, 2022 Master Builder

Castle Castle Sets Crusaders Official Sets Small Builds

6042: Dungeon Hunters

October 1, 2024October 1, 2024 Master Builder

Classic Town Large Builds Official Sets Race Town Town Sets

6337: Fast Track Finish

December 4, 2023December 4, 2023 Master Builder

Classic Town Large Builds Official Sets Police Town Town Sets

6483: Coastal Patrol

December 29, 2021December 29, 2021 Master Builder

Episode II Extra Large Builds Official Sets Star Wars Star Wars Sets

4482: AT-TE

April 9, 2020April 9, 2020 Master Builder

Black Falcons Castle Castle Sets Official Sets Small Builds

6030: Catapult

April 2, 2022April 2, 2022 Master Builder

Large Builds M:Tron M:Tron Alternate Builds M:Tron Sets Official Sets Space Super Model

6862: Secret Space Voyager

July 29, 2023July 29, 2023 Master Builder

Extra Large Builds Model Team Model Team Sets Official Sets

5581: Magic Flash

January 2, 2024January 2, 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
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.