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

Bjarne Tveskov Official Sets Space Space Police I Space Police I Sets Very Small Builds

6831: Message Decoder

May 3, 2020July 29, 2023 Master Builder 5334 Views

Year Released: 1989
Designer: Bjarne Tveskov
Instructions
Bricklink

Back A

Back A

← 918 – Back D
6831 – Back A →

You May Also Like

891: Two-Man Scooter

March 15, 2024March 15, 2024 Master Builder

6891: Gamma-V Laser Craft

September 13, 2019August 3, 2024 Master Builder

6846 – Back A

September 26, 2019October 25, 2021 Master Builder

Book 6000 – Page 54-55

November 7, 2021January 18, 2022 Master Builder

6346: Shuttle Launching Crew

November 20, 2020November 20, 2020 Master Builder

6195: Neptune Discovery Lab (Aqua Dome 7)

January 20, 2022February 11, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

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

7300 (1414, 7308, Kabaya: Life On Mars 1): Double Hover

February 24, 2025February 25, 2025 Master Builder

Year Released: 2001BricklinkInstructions *Alternate Builds are found on Kabaya: Life On Mars

Futron Sets Futuron Official Sets Small Builds Space

6885: Saturn Base Main Team (Crater Crawler)

December 28, 2021December 28, 2021 Master Builder

Gas Station Medium Builds Official Sets Town Town Jr Town Sets

6548: Octan Gas Station

October 12, 2021October 12, 2021 Master Builder

Classic Town Construction Official Sets Town Town Sets Very Small Builds

6630: Bucket Loader

October 13, 2021October 13, 2021 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets Space

6926: Mobile Recovery Vehicle

October 12, 2021October 12, 2021 Master Builder

Holiday and Event Holiday and Event Sets Official Sets Small Builds

1978: Build-A-Santa Polybag

April 28, 2023April 28, 2023 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets Space

1968: {Unknown}

August 28, 2020September 13, 2023 Master Builder

ABCs Bjarne Tveskov Blacktron Blacktron Sets Official Sets Small Builds Space

6876: Alienator

November 16, 2019October 16, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6844: Seismologic Vehicle (Sismobile)

October 22, 2019September 10, 2023 Master Builder

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

7139: Ewok Attack

June 27, 2022February 24, 2023 Master Builder

ABCs Insectoids Insectoids Sets Official Sets Small Builds

6837: Cosmic Creeper (Mantis Scavenger)

April 2, 2020March 22, 2025 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6667: Pothole Patcher

November 19, 2020November 19, 2020 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6509: Red Devil Racer

October 12, 2021October 12, 2021 Master Builder

Official Sets Space Port Town Town Sets Very Small Builds

6452: Mini Rocket Launcher

October 3, 2024October 3, 2024 Master Builder

Bonus/Value Pack Sets Bonus/Value Packs Exploriens Exploriens Sets Official Sets Small Builds Space UFO UFO Sets

UFO Value Pack (VP-5)

December 10, 2025March 14, 2026 Master Builder

ABCs Blacktron Blacktron Sets Bonus/Value Pack Sets LL Link Official Sets Very Small Builds

1875: Meteor Monitor

July 14, 2021January 22, 2026 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.