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
- Train
- 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 4450 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

6949 – Back A

July 12, 2022July 13, 2022 Master Builder

6285 – Back A

August 3, 2023August 3, 2023 Master Builder

1916 (3015) – Back A

January 19, 2022January 19, 2022 Master Builder

6396 – Back A

July 14, 2021July 14, 2021 Master Builder

6071 – Back A

May 7, 2023May 8, 2023 Master Builder

Book 250 – Cover

February 9, 2023March 2, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

Exploriens Exploriens Sets Extra Large Builds Official Sets

6982: Explorien Starship

November 9, 2019December 13, 2024 Master Builder

Year Released: 1996BricklinkInstructions (Revision/Addition: P41, Step 35)

Basic Extra Large Builds Official Sets Universal Building Set

725: Basic Building Set

July 22, 2024July 22, 2024 Master Builder

Castle Castle Sets Lion Knights Official Sets Small Builds

6040: Blacksmith Shop

October 8, 2023October 8, 2023 Master Builder

Episode III Medium Builds Official Sets Star Wars Star Wars Sets

7252: Droid Tri-Fighter

March 3, 2023November 12, 2024 Master Builder

Classic Town Medium Builds Official Sets Town Town Sets Traffic

6363: Auto Service Station

February 17, 2023February 17, 2023 Master Builder

Airport Classic Town Official Sets Town Town Sets Very Small Builds

6515: Stunt Copter

February 2, 2022February 2, 2022 Master Builder

Episode IV/V/VI Extra Large Builds Official Sets Star Wars Star Wars Sets

7184: Trade Federation MTT

April 21, 2026April 21, 2026 Master Builder

Classic Town Official Sets Race Town Town Sets Very Small Builds

1096: Race Buggy

July 26, 2020July 26, 2020 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

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

1747: Treasure Cave

May 6, 2022May 6, 2022 Master Builder

Divers Large Builds Official Sets Town Town Sets

6441: Deep Reef Refuge

November 6, 2019December 29, 2021 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6524: Blizzard Blazer

June 28, 2022June 28, 2022 Master Builder

Classic Town Medium Builds Official Sets Police Town Town Sets

6430: Night Patroller

April 9, 2020February 4, 2021 Master Builder

Insectoids Insectoids Sets Official Sets Small Builds

6905: Bi-Wing Blaster

February 22, 2023February 22, 2023 Master Builder

Goblet of Fire Harry Potter Harry Potter Sets Large Builds Official Sets

4767: Harry and the Hungarian Horntail

May 16, 2023May 16, 2023 Master Builder

ABCs Classic Space Classic Space Sets Large Builds Official Sets Space

6783: Sonar Transmitting Cruiser

May 8, 2022August 15, 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
Train
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.