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

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 5711 Views

Year Released: 1989
Designer: Bjarne Tveskov
Instructions
Bricklink

Back A

Back A

← 918 – Back D
6831 – Back A →

You May Also Like

6880 – Back A

June 1, 2022June 2, 2022 Master Builder

1549: Santa and Chimney

February 27, 2023March 5, 2026 Master Builder

6871: Star Patrol Launcher

September 27, 2019September 30, 2019 Master Builder

1736 – Back B

September 24, 2024September 24, 2024 Master Builder

6927: All Terrain Vehicle

October 22, 2019October 22, 2019 Master Builder

5810: Vanity Fun

April 10, 2021April 10, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Town Official Sets Police Small Builds Town Town Sets

1895: Sky Patrol

June 1, 2022June 1, 2022 Master Builder

Year Released: 1992BricklinkInstructions

Belville Belville Sets Lion Knights Official Sets Playhouse Very Small Builds

5810: Vanity Fun

April 10, 2021April 10, 2021 Master Builder

Dino Attack Official Sets Small Builds

7473: Street Sprinter vs. Mutant Lizard

March 21, 2023March 21, 2023 Master Builder

Jørn Thomsen Medium Builds Official Sets Space Space Police I Space Police I Sets

6895: Spy-Trak I

April 8, 2020September 12, 2024 Master Builder

Airport Classic Town Medium Builds Official Sets Town Town Sets

6440: Jetport Fire Squad

December 29, 2021December 29, 2021 Master Builder

Classic Town Official Sets Supplemental Town

6347: Monorail Accessory Track

August 27, 2023August 27, 2023 Master Builder

Aquazone Aquazone Sets Box Plus Large Builds Official Sets Playscape/Play Stage Box Stingrays

6109: Sea Creeper {with Giant Ray}

January 19, 2022April 1, 2025 Master Builder

Classic Town Official Sets Town Town Sets Traffic Very Small Builds

6530: Sport Coupe (City Car)

April 4, 2020April 19, 2021 Master Builder

Adventurers Adventurers Sets Desert Official Sets Small Builds

5928: Bi-Wing Baron

February 22, 2023February 22, 2023 Master Builder

Blacktron II Blacktron II Sets Official Sets Space Very Small Builds

1694: Galactic Scout

February 9, 2021February 9, 2021 Master Builder

Classic Town Medium Builds Official Sets Town Town Sets Traffic

1490: Town Bank

January 23, 2024January 23, 2024 Master Builder

Airport Classic Town Medium Builds Official Sets Town Town Sets

3439: Spy Runner

May 11, 2022May 11, 2022 Master Builder

Exploriens Exploriens Sets Extra Large Builds Official Sets

6982: Explorien Starship

November 9, 2019December 13, 2024 Master Builder

Classic Town Official Sets Police Small Builds Town Town Sets

6642: Police Helicopter

April 8, 2020April 8, 2020 Master Builder

Official Sets Small Builds Time Cruisers Time Cruisers Sets

6495: Time Tunnelator

July 14, 2021July 14, 2021 Master Builder

ABCs Classic Town Official Sets Small Builds Town Town Sets Traffic

6655: Auto & Tire Repair

June 4, 2023July 31, 2023 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.