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

Alternate Builds Instructions Added Space Space Police I Space Police I Alternate Builds Very Small Alt Build Very Small Builds

6831 – Back A

May 3, 2020November 18, 2021 Master Builder 3459 Views

From: 6831: Message Decoder
Name: Message Runner ¹
Instructions: View PDF | Download .io File

Contributions

PDF and .io file submitted on November 17, 2021 by: Krysto

← 6831: Message Decoder
6831 – Back B →

You May Also Like

6614 – Back B

June 30, 2023June 30, 2023 Master Builder

5988 – Back B

October 29, 2019April 4, 2020 Master Builder

565 – Back E

July 11, 2024July 11, 2024 Master Builder

6074 – Back A

October 14, 2021August 1, 2023 Master Builder

6804 – Back B

September 25, 2019October 25, 2021 Master Builder

375-2 – Back B

November 8, 2019September 5, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

Box Marketing Blurb Classic Town Large Builds Official Sets Police Town Town Sets

6386: Police Command Base

February 4, 2021April 3, 2024 Master Builder

Year Released: 1986BricklinkInstructions The box reads, “Creativity and Quality Craftsmanship are the key ingredients in this and all LEGO® brand building

Belville Belville Sets Lion Knights Medium Builds Official Sets Recreation

5847: Surfers’ Paradise

April 2, 2025April 2, 2025 Master Builder

ABCs Exo-Force Medium Builds Official Sets

7703: Fire Vulture

August 4, 2023February 12, 2025 Master Builder

Bonus/Value Pack Sets Official Sets Small Builds Space Spyrius Spyrius Sets

1843-2: {Spyrius Unknown}

September 8, 2023September 13, 2023 Master Builder

M:Tron M:Tron Sets Official Sets Space Very Small Builds

9401: M:Tron Team

February 18, 2026February 18, 2026 Master Builder

Classic Space Classic Space Sets Extra Large Builds Official Sets Space

6980: Galaxy Commander

July 21, 2021July 21, 2021 Master Builder

Educational & Dacta Extra Large Builds Futron Sets Futuron Official Sets Space

9355: Dacta Space Theme Set

March 2, 2023May 18, 2023 Master Builder

Airport Classic Town Official Sets Town Town Sets Very Small Builds

1630: Helicopter

April 8, 2025April 8, 2025 Master Builder

Classic Town Harbor Official Sets Small Builds Town Town Sets Wrecker

6663: Wave Rebel

June 6, 2022June 6, 2022 Master Builder

ABCs Official Sets Small Builds UFO UFO Sets

6836: V-Wing Fighter

October 24, 2019March 22, 2025 Master Builder

Box Story Extra Large Builds Niels Milan Pedersen Official Sets Pirates Pirates I Pirates Sets

6285: Black Seas Barracuda

August 3, 2023February 20, 2025 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 Medium Builds Official Sets

6891: Gamma-V Laser Craft

September 13, 2019August 3, 2024 Master Builder

Imperial Armada Official Sets Pirates Pirates Sets Small Builds

6244: Armada Sentry

November 16, 2019April 4, 2020 Master Builder

Episode II Large Builds Official Sets Star Wars Star Wars Sets

7153: Jango Fett’s Slave I

May 10, 2022May 10, 2022 Master Builder

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

7130: Snowspeeder

June 28, 2022June 28, 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.