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

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 3892 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

7473 – Back A

March 21, 2023March 21, 2023 Master Builder

6370 – Back A

February 17, 2023May 19, 2023 Master Builder

6394 – Back C

February 17, 2023May 19, 2023 Master Builder

6991: Monorail Transport Base

September 28, 2019July 29, 2023 Master Builder

6359 – Back C

October 8, 2024October 8, 2024 Master Builder

8044 – Inside B

August 23, 2024August 23, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

Medium Builds Official Sets Pirates Pirates I Pirates Sets

6296: Shipwreck Island

January 12, 2022January 12, 2022 Master Builder

Year Released: 1996BricklinkInstructions

Chamber of Secrets Harry Potter Harry Potter Sets Medium Builds Official Sets

4733: The Dueling Club

March 3, 2023March 3, 2023 Master Builder

Box Story Daniel August Krentz Extra Large Builds Imperial Soldiers Niels Milan Pedersen Official Sets Pirates Pirates I Pirates Sets

6276: Eldorado Fortress

January 28, 2022April 3, 2024 Master Builder

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

6386: Police Command Base

February 4, 2021April 3, 2024 Master Builder

Belville Belville Sets Lion Knights Medium Builds Official Sets Recreation

5847: Surfers’ Paradise

April 2, 2025April 2, 2025 Master Builder

Box Story Ice Planet 2002 Ice Planet 2002 Sets Jørn Thomsen Large Builds Official Sets Space

6983: Ice Station Odyssey

November 9, 2019March 20, 2025 Master Builder

Futron Sets Futuron Official Sets Small Builds Space

6885: Saturn Base Main Team (Crater Crawler)

December 28, 2021December 28, 2021 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6237: Pirates’ Plunder

February 8, 2022February 8, 2022 Master Builder

Box Plus Different Box Versions Official Sets Playscape/Play Stage Box Small Builds Time Cruisers Time Cruisers Sets

6499: Time Tunnelator with Time Machine

March 5, 2026March 5, 2026 Master Builder

Cargo Classic Town Medium Builds Official Sets Town Town Sets

6367: Truck

February 17, 2023February 17, 2023 Master Builder

Extra Large Builds Official Sets Race Town Town Sets

6395: Victory Lap Raceway

July 1, 2022July 1, 2022 Master Builder

Bjarne Tveskov Extra Large Builds Official Sets Space Space Police I Space Police I Sets

6986: Mission Commander

April 3, 2022July 29, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

6874: Moon Rover

November 6, 2023November 6, 2023 Master Builder

Extra Large Builds Official Sets Res-Q Town Town Sets

6479: Emergency Response Center

April 16, 2021January 20, 2022 Master Builder

Harry Potter Harry Potter Sets Medium Builds Official Sets Sorcerer's Stone

4704: The Chamber of the Winged Keys

May 28, 2024May 28, 2024 Master Builder

Aquanauts Aquazone Aquazone Sets Official Sets Very Small Builds

1749: Paravane

July 26, 2020July 26, 2020 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.