Skip to content

Back of the Box Builds

LEGO Alternate Builds!

SETS
- Adventurers
- Aquazone
- 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
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 5361 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

6970 – Inside A

January 20, 2021January 20, 2021 Master Builder

1558 – Back A

December 18, 2021December 18, 2021 Master Builder

6956 – Back A

September 23, 2019October 25, 2021 Master Builder

6781: SP-Striker

April 19, 2021July 29, 2023 Master Builder

6949: Robo-Guardian

October 23, 2019August 15, 2023 Master Builder

Robus

March 14, 2025April 10, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

Black Knights Castle Castle Sets Extra Large Builds Niels Milan Pedersen Official Sets

6086: Black Knight’s Castle

October 11, 2021July 29, 2023 Master Builder

Year Released: 1992Designer: Niels Milan PedersenBricklinkInstructions

Classic Town Extra Large Builds Gas Station Official Sets Town Town Sets Wrecker

6378: Service Station

February 25, 2023February 26, 2023 Master Builder

Aquashark Aquazone Aquazone Sets Large Builds Official Sets

6190: Shark’s Crystal Cave

July 13, 2021January 20, 2022 Master Builder

Niels Milan Pedersen Official Sets Pirates Pirates I Pirates Sets Small Builds

6257: Castaway’s Raft

June 6, 2022July 29, 2023 Master Builder

Insectoids Insectoids Sets Large Builds Official Sets

6919: Planetary Prowler

November 9, 2019November 9, 2019 Master Builder

Box Plus Different Box Versions Medium Builds Official Sets Storage Container Time Cruisers Time Cruisers Sets

1853: Navigator

March 18, 2025March 5, 2026 Master Builder

Holiday and Event Holiday and Event Sets Official Sets Very Small Builds

1555: Santa Claus Polybag

April 28, 2023April 28, 2023 Master Builder

Classic Town Coast Guard Medium Builds Official Sets Town Town Sets

6342: Beach Rescue Chopper

July 15, 2022July 15, 2022 Master Builder

Classic Space Classic Space Sets Jens Nygaard Knudsen Official Sets Small Builds

897: Mobile Missile Command

September 14, 2019July 31, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

885: Space Scooter

January 27, 2024January 27, 2024 Master Builder

Airport Classic Town Official Sets Small Builds Town Town Sets

6536: Aero Hawk

January 22, 2026January 22, 2026 Master Builder

Extra Large Builds Official Sets Technic Technic Sets

8860: Car Chassis (Auto Chassis)

January 2, 2024January 2, 2024 Master Builder

Castle Castle Sets Duplicate Set Number Large Builds Official Sets Wolfpack

6075-1: Wolfpack Tower

October 11, 2021March 11, 2024 Master Builder

Episode IV/V/VI Medium Builds Official Sets Star Wars Star Wars Sets

7146: TIE Fighter

February 19, 2025February 19, 2025 Master Builder

Medium Builds Official Sets Technic Technic Sets

8812: Aero Hawk II

January 22, 2026January 22, 2026 Master Builder

Classic Town Official Sets Supplemental Town

6312: Straight Road Plates

October 10, 2022October 10, 2022 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
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.