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 6259 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

6780 – Back B

March 31, 2022April 2, 2022 Master Builder

BrickJournal Issue 6 Volume 2 Page 43 – Proto 1

February 23, 2023August 15, 2023 Master Builder

885: Space Scooter

January 27, 2024May 13, 2026 Master Builder

6876 – Back C

November 16, 2019July 31, 2023 Master Builder

6901: Mobile Lab

September 11, 2020August 4, 2023 Master Builder

6848: Interplanetary Shuttle

March 11, 2024March 11, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

Bonus/Value Pack Sets Castle Castle Sets Forestmen Official Sets Small Builds

1974-3: Smuggler’s Hayride

September 7, 2023September 8, 2023 Master Builder

Year Released: 1989BricklinkInstructions *This set was available in 1974: LEGOLAND Triple Pack. The back of the value pack is shown below.

Classic Town Medium Builds Official Sets Town Town Sets Traffic

6373: Motorcycle Shop

January 6, 2022January 6, 2022 Master Builder

Black Knights Castle Castle Sets Official Sets Small Builds

6018: Battle Dragon

October 5, 2019April 4, 2020 Master Builder

Cargo Classic Town Large Builds Official Sets Town Town Sets

6377: Delivery Center

May 22, 2026May 22, 2026 Master Builder

Classic Town Large Builds Official Sets Police Town Town Sets

6545: Search N’ Rescue

June 2, 2022June 2, 2022 Master Builder

Box Story Fabuland Fabuland Sets Official Sets Small Builds

3676: Catherine Cat’s Fun Park

March 1, 2025March 1, 2025 Master Builder

Box Plus FreeStyle FreeStyle Official Sets Official Sets Poster Small Builds

4150: FreeStyle Building Set

December 17, 2025December 17, 2025 Master Builder

Classic Town Official Sets Supplemental Town

6313: Cross-Road Plates

October 10, 2022October 10, 2022 Master Builder

Islanders Official Sets Pirates Pirates I Pirates Sets Small Builds

6246: Crocodile Cage

January 26, 2022January 26, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6842: Shuttle Craft

October 21, 2019October 21, 2019 Master Builder

Castle Castle Sets Daniel August Krentz Large Builds Lion Knights Official Sets

6067: Guarded Inn

February 9, 2021July 29, 2023 Master Builder

Classic Town Official Sets Race Town Town Sets Very Small Builds

1096: Race Buggy

July 26, 2020July 26, 2020 Master Builder

Exploriens Exploriens Sets Medium Builds Official Sets

6938: Scorpion Detector

March 21, 2023March 5, 2026 Master Builder

Classic Space Classic Space Sets Large Builds Official Sets

6951: Robot Command Center

September 21, 2019September 28, 2019 Master Builder

Ice Planet 2002 Ice Planet 2002 Sets Jørn Thomsen Official Sets Space Very Small Builds

1731 (1711, Kabaya: Space 4): Ice Planet Scooter

April 6, 2020March 10, 2025 Master Builder

Large Builds Launch Command Official Sets Town Town Sets

6544: Shuttle Transcon 2

July 20, 2022July 20, 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
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.