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 7057 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

Space Skeletal Horse Concept

January 22, 2026January 22, 2026 Master Builder

6897 – Back A

April 8, 2022May 10, 2022 Master Builder

Book 6000 – Page 60-61

January 15, 2022February 5, 2026 Master Builder

Book 200 – Page 36-37

October 10, 2024February 4, 2025 Master Builder

6847 – Back D

September 14, 2025September 15, 2025 Master Builder

6815 – Back B

July 11, 2022July 13, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

BIONICLE BIONICLE Sets Extra Large Builds Official Sets Warriors

8922: Gadunka

March 6, 2026March 6, 2026 Master Builder

Year Released: 2007BricklinkInstructions NONE 🙁

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

4706: Forbidden Corridor

February 27, 2023February 27, 2023 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6237: Pirates’ Plunder

February 8, 2022February 8, 2022 Master Builder

Life on Mars Life on Mars Sets Official Sets Very Small Builds

7310: Mono Jet

April 16, 2021April 16, 2021 Master Builder

Official Sets Race Town Town Sets Very Small Builds

6503: Sprint Racer

July 9, 2022July 9, 2022 Master Builder

Blacktron II Blacktron II Sets Large Builds Official Sets

6988: Alpha Centauri Outpost

October 24, 2019October 24, 2019 Master Builder

Holiday and Event Holiday and Event Sets Official Sets Small Builds

1628: Santa on Sleigh with Reindeer

November 25, 2020July 25, 2024 Master Builder

Island Xtreme Stunts Island Xtreme Stunts Sets Medium Builds Official Sets

6739: Truck & Stunt Trikes

April 16, 2026April 16, 2026 Master Builder

Large Builds Model Team Model Team Sets Official Sets

5540: Formula I Racer

February 10, 2026March 4, 2026 Master Builder

Black Knights Castle Castle Sets Medium Builds Official Sets

6057: Sea Serpent

April 14, 2025April 14, 2025 Master Builder

Castle Castle Sets Lion Knights Official Sets Small Builds

6017: King’s Oarsman

September 24, 2024September 24, 2024 Master Builder

Episode III Medium Builds Official Sets Star Wars Star Wars Sets

6205: V-wing Fighter

March 3, 2023March 3, 2023 Master Builder

Batman I BATMAN™ BATMAN™ Sets Extra Large Builds Official Sets

7783: The Batcave: The Penguin and Mr. Freeze’s Invasion

March 27, 2026March 27, 2026 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

1580: Lunar Scout

July 12, 2021July 12, 2021 Master Builder

Classic Town Fire Medium Builds Official Sets Town Town Sets

6340: Hook & Ladder

December 29, 2021December 29, 2021 Master Builder

Classic Space Classic Space Sets Large Builds Official Sets Space Super Model

1593: Super Model

February 3, 2021March 18, 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.