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

Blacktron II Prototypes

February 23, 2023February 11, 2025 Master Builder 5937 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

6828 – Back C

January 23, 2025January 30, 2025 Master Builder

6850 – Back C

September 24, 2019March 14, 2025 Master Builder

6983: Ice Station Odyssey

November 9, 2019March 20, 2025 Master Builder

6953 – Back A

May 16, 2023May 17, 2023 Master Builder

Space 3-Pack: Exploriens

October 2, 2024October 3, 2024 Master Builder

6933 – Back C

July 12, 2022July 13, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Town LL Link Official Sets Race Small Builds Town Town Sets

6648: Mag Racer

November 19, 2020July 11, 2024 Master Builder

Year Released: 1992BricklinkInstructions *LL Link: Blacktron

Cowboys Medium Builds Official Sets Western Western Sets

6755: Sheriff’s Lock-Up

July 3, 2024February 18, 2025 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

Medium Builds Official Sets Paradisa Town Town Sets

6404: Carriage Ride

January 6, 2025January 6, 2025 Master Builder

ABCs Castle Castle Sets Classic Castle Daniel August Krentz Different Set Numbers Duplicate Set Number Extra Large Builds Official Sets

375-2 (6075-2): Castle

November 8, 2019September 5, 2025 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

6870: Space Probe Launcher

January 12, 2021January 12, 2021 Master Builder

Classic Space Classic Space Sets Large Builds Official Sets

6929: Starfleet Voyager

September 22, 2019April 3, 2023 Master Builder

Classic Town Official Sets Recreation Town Town Sets Very Small Builds

6534: Beach Bandit

July 8, 2022July 8, 2022 Master Builder

Bonus/Value Packs Classic Town Fire Ice Planet 2002 Ice Planet 2002 Sets Official Sets Small Builds Space Town

1722: Rescue/Ice Planet Combo Pack

July 13, 2021April 4, 2024 Master Builder

Duplicate Set Number Official Sets UFO UFO Sets Very Small Builds

6901-2: Space Plane

December 16, 2025December 16, 2025 Master Builder

Classic Town Coast Guard Large Builds Official Sets Town Town Sets

6387: Coastal Rescue Base

July 15, 2022July 15, 2022 Master Builder

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

7301 (1413, 7309, Kabaya: Life On Mars 4): Rover

February 24, 2025February 25, 2025 Master Builder

Insectoids Insectoids Sets Large Builds Official Sets

6919: Planetary Prowler

November 9, 2019November 9, 2019 Master Builder

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

7310: Mono Jet

April 16, 2021April 16, 2021 Master Builder

Classic Town Construction Medium Builds Official Sets Town Town Sets

6361: Mobile Crane

April 9, 2020April 9, 2020 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets

6890: Cosmic Cruiser

October 7, 2019October 7, 2019 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.