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

Blacktron Blacktron Sets Daniel August Krentz Extra Large Builds Official Sets Space

6987: Message Intercept Base

September 12, 2019March 2, 2026 Master Builder 11774 Views

Year Released: 1988
Designer: Daniel August Krentz
Bricklink
Instructions

Back A

Back A

6940: Alien Moon Stalker →

You May Also Like

Classic Space Moon Base Concept

January 1, 2024February 12, 2025 Master Builder

6679: Dark Shark

December 28, 2021December 28, 2021 Master Builder

6399 – Back A

February 24, 2023March 17, 2024 Master Builder

6951 – Back D

September 21, 2019October 25, 2021 Master Builder

1414 – Back A

February 25, 2025February 25, 2025 Master Builder

6354: Pursuit Squad

February 9, 2022February 9, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

Official Sets Outback Small Builds Town Town Sets

6487: Mountain Rescue

July 25, 2022July 25, 2022 Master Builder

Year Released: 1997BricklinkInstructions

Large Builds Official Sets Space Unitron Unitron Sets

1793: Space Station Zenon

April 19, 2021April 19, 2021 Master Builder

Castle Castle Sets Lion Knights Official Sets Small Builds

6017: King’s Oarsman

September 24, 2024September 24, 2024 Master Builder

Classic Town Fire Medium Builds Official Sets Town Town Sets

6593: Blaze Battler

November 19, 2020November 19, 2020 Master Builder

ABCs Airport Classic Town Extra Large Builds Official Sets Town Town Sets

6392: Airport

June 28, 2022August 16, 2023 Master Builder

ABCs Classic Space Classic Space Sets Extra Large Builds Official Sets

6985: Cosmic Fleet Voyager

September 12, 2019August 16, 2023 Master Builder

Castle Castle Sets Lion Knights Medium Builds Official Sets

6060: Knight’s Challenge

July 2, 2024October 1, 2024 Master Builder

Airport Classic Town Official Sets Town Town Sets Very Small Builds

6515: Stunt Copter

February 2, 2022February 2, 2022 Master Builder

9V Extra Large Builds Official Sets Town Train Train Sets

4565: Freight and Crane Railway

January 5, 2026January 5, 2026 Master Builder

Bonus/Value Pack Alternate Builds Bonus/Value Pack Sets Bonus/Value Packs Medium Builds Official Sets Space Port Town Town Sets

6469: Spaceport Bonus Pack

March 3, 2025March 3, 2025 Master Builder

Airport Classic Town Different Box Versions Extra Large Builds Official Sets Town Town Sets

6399: Airport Shuttle

February 24, 2023March 17, 2024 Master Builder

9V Official Sets Small Builds Town Train Train Sets

4525: Road and Rail Repair

July 22, 2026July 22, 2026 Master Builder

Ice Planet 2002 Ice Planet 2002 Sets Jørn Thomsen Medium Builds Official Sets Space

6898: Ice-Sat V

June 8, 2020July 29, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6871: Star Patrol Launcher

September 27, 2019September 30, 2019 Master Builder

Classic Town Fire Official Sets Small Builds Town Town Sets

6531: Flame Chaser

November 7, 2022November 7, 2022 Master Builder

Classic Town Construction Official Sets Small Builds Town Town Sets

6662: Backhoe

July 8, 2022July 8, 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
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.