Skip to content
Back of the Box Builds

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
    • Submit Instructions!
    • New Instructions
    • New Official Sets
    • New Alternate Builds
    • Minifigs
    • Very Small Builds
    • Small Builds
    • Medium Builds
    • Large Builds
    • Extra Large Builds
    • How BOTBB was Built
  • 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 3219 Views

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

Contributions

  1. PDF and .io file submitted on November 17, 2021 by: Krysto
  • ← 6831: Message Decoder
  • 6831 – Back B →

You May Also Like

6264 – Back E

August 31, 2022September 16, 2022 Master Builder

4794 – Back C

February 12, 2024February 21, 2024 Master Builder

6986 – Back C

May 26, 2023July 11, 2023 Master Builder

5830 – Back B

April 19, 2021April 19, 2021 Master Builder

6817 – Back B

June 1, 2022June 1, 2022 Master Builder

Galactic Spearhead

April 9, 2025April 10, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

6236: King Kahuka
Islanders Official Sets Pirates Pirates I Pirates Sets Small Builds 

6236: King Kahuka

December 28, 2021December 28, 2021 Master Builder

Year Released: 1994BricklinkInstructions

6381: Motor Speedway
Medium Builds Official Sets Town Town Sets 

6381: Motor Speedway

October 5, 2019February 19, 2023 Master Builder
5810: Vanity Fun
Belville Belville Sets Lion Knights Official Sets Playhouse Very Small Builds 

5810: Vanity Fun

April 10, 2021April 10, 2021 Master Builder
6623: Police Car
Classic Town Official Sets Police Town Town Sets Very Small Builds 

6623: Police Car

October 13, 2021October 13, 2021 Master Builder
6848: Interplanetary Shuttle
Classic Space Classic Space Sets Duplicate Set Number Official Sets Small Builds Space 

6848: Interplanetary Shuttle

March 11, 2024March 11, 2024 Master Builder
885: Space Scooter
Classic Space Classic Space Sets Official Sets Space Very Small Builds 

885: Space Scooter

January 27, 2024January 27, 2024 Master Builder
6393: Big-Rig Truck Stop
Classic Town Extra Large Builds Official Sets Town Town Sets Traffic 

6393: Big-Rig Truck Stop

June 28, 2022June 28, 2022 Master Builder
6545: Search N’ Rescue
Classic Town Large Builds Official Sets Police Town Town Sets 

6545: Search N’ Rescue

June 2, 2022June 2, 2022 Master Builder
6135: Spy Shark
Aquashark Aquazone Aquazone Sets Official Sets Very Small Builds 

6135: Spy Shark

March 21, 2023March 21, 2023 Master Builder
6263: Imperial Outpost
Imperial Guards Medium Builds Official Sets Pirates Pirates I Pirates Sets 

6263: Imperial Outpost

February 21, 2025February 21, 2025 Master Builder
6281: Pirates Perilous Pitfall
Box Story Large Builds Official Sets Pirates Pirates I Pirates Sets 

6281: Pirates Perilous Pitfall

February 21, 2025February 21, 2025 Master Builder
6810: Laser Ranger
Bjarne Tveskov Futron Sets Futuron Official Sets Very Small Builds 

6810: Laser Ranger

September 25, 2019July 29, 2023 Master Builder
6487: Mountain Rescue
Official Sets Outback Small Builds Town Town Sets 

6487: Mountain Rescue

July 25, 2022July 25, 2022 Master Builder
6534: Beach Bandit
Classic Town Official Sets Recreation Town Town Sets Very Small Builds 

6534: Beach Bandit

July 8, 2022July 8, 2022 Master Builder
6370: Weekend Home
Building Classic Town Medium Builds Official Sets Town Town Sets 

6370: Weekend Home

February 17, 2023February 19, 2023 Master Builder
7256: Jedi Starfighter & Vulture Droid
Episode III Medium Builds Official Sets Star Wars Star Wars Sets 

7256: Jedi Starfighter & Vulture Droid

March 1, 2023May 12, 2023 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

Logo
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 © 2025 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.