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 3404 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

1916 (3015) – Back B

January 19, 2022September 9, 2024 Master Builder

8044 – Back A

August 23, 2024August 23, 2024 Master Builder

1912 (Set A, 1) – Back C

April 1, 2025April 1, 2025 Master Builder

857 – Bottom

January 6, 2025January 6, 2025 Master Builder

6854 – Back B

August 31, 2022September 19, 2022 Master Builder

6837 – Back B

April 2, 2020April 2, 2020 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Town Construction Medium Builds Official Sets Town Town Sets

6481: Construction Crew

April 9, 2020July 4, 2022 Master Builder

Year Released: 1989BricklinkInstructions

Bjarne Tveskov Medium Builds Official Sets Space Space Police I Space Police I Sets

6886: Galactic Peace Keeper

April 8, 2020July 29, 2023 Master Builder

Black Knights Castle Castle Sets Official Sets Very Small Builds

6009: Black Knight

April 9, 2020April 9, 2020 Master Builder

Official Sets Paradisa Town Town Sets Very Small Builds

6402: Sidewalk Cafe

October 5, 2019January 14, 2021 Master Builder

Classic Town Off-Road Official Sets Small Builds Town Town Sets

6641: 4-Wheelin’ Truck (Four Wheelin’ Truck)

May 7, 2022May 7, 2022 Master Builder

Airport Classic Town Official Sets Town Town Sets Very Small Builds

6515: Stunt Copter

February 2, 2022February 2, 2022 Master Builder

Official Sets Rock Raiders Rock Raiders Sets Small Builds

4940: Granite Grinder

April 4, 2020April 4, 2020 Master Builder

ABCs Bjarne Tveskov Blacktron II Blacktron II Sets Official Sets Small Builds

6878: Sub Orbital Guardian

October 4, 2019August 14, 2023 Master Builder

Classic Town Coast Guard Large Builds Official Sets Town Town Sets

6387: Coastal Rescue Base

July 15, 2022July 15, 2022 Master Builder

Castle Castle Sets Dark Forest Medium Builds Official Sets

6046: Hemlock Stronghold

November 18, 2021November 18, 2021 Master Builder

Episode III Extra Large Builds Official Sets Star Wars Star Wars Sets

7261: Clone Turbo Tank

March 1, 2023March 1, 2023 Master Builder

Dino Attack Official Sets Small Builds

7474: Urban Avenger vs. Raptor

April 27, 2023April 27, 2023 Master Builder

Airport Medium Builds Official Sets Town Town Sets World City

4032: Passenger Plane

December 29, 2021December 29, 2021 Master Builder

Classic Town Fire Official Sets Town Town Sets Very Small Builds

6505: Fire Chief’s Car

July 8, 2022July 8, 2022 Master Builder

Islanders Official Sets Pirates Pirates I Pirates Sets Small Builds

6246: Crocodile Cage

January 26, 2022January 26, 2022 Master Builder

Alpha Team Alpha Team Sets Mission Deep Sea Official Sets Very Small Builds

Kabaya: Alpha Team 3

September 9, 2024September 9, 2024 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.