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 3971 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

1628 – Back B

November 25, 2020July 25, 2024 Master Builder

6604 – Back C

November 25, 2020November 25, 2020 Master Builder

6071 – Back C

May 7, 2023May 8, 2023 Master Builder

6390 – Back E

February 10, 2023February 10, 2023 Master Builder

6350 – Back C

April 9, 2020April 9, 2020 Master Builder

6665 – Back D

June 1, 2022June 2, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Town Large Builds Official Sets Police Town Town Sets

6348: Surveillance Squad

June 23, 2026June 23, 2026 Master Builder

Year Released: 1994BricklinkInstructions

Classic Town Medium Builds Official Sets Town Town Sets Traffic

379: Bus Station

April 10, 2021May 31, 2023 Master Builder

Blacktron Blacktron Sets Medium Builds Official Sets

6894: Invader

November 20, 2019November 20, 2019 Master Builder

Box Story Fabuland Fabuland Sets Medium Builds Official Sets

132: Cottage

March 1, 2023April 3, 2024 Master Builder

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

7186: Watto’s Junkyard

April 21, 2026April 21, 2026 Master Builder

Classic Space Classic Space Sets Large Builds Official Sets

6940: Alien Moon Stalker

September 12, 2019September 12, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

6845: Cosmic Charger

January 14, 2025January 14, 2025 Master Builder

ABCs Exploriens Exploriens Sets Official Sets Small Builds Space

6854: Alien Fossilizer

July 15, 2022March 22, 2025 Master Builder

Airport Classic Town Medium Builds Official Sets Town Town Sets

6673: Solo Trainer

November 18, 2020November 18, 2020 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6633: Family Car

April 19, 2021April 19, 2021 Master Builder

Holiday and Event Holiday and Event Sets Official Sets Small Builds

1628: Santa on Sleigh with Reindeer

November 25, 2020July 25, 2024 Master Builder

Large Builds Official Sets Technic Technic Sets

951: Bulldozer

December 17, 2025December 17, 2025 Master Builder

Ice Planet 2002 Ice Planet 2002 Sets Jørn Thomsen Official Sets Space Very Small Builds

6814: Ice Tunnelator

April 6, 2020April 2, 2025 Master Builder

Basic Set Duplo Duplo Sets Official Sets Very Small Builds

2331: Barney The Skateboard Bear

December 29, 2021December 29, 2021 Master Builder

Basic Official Sets Universal Building Set Very Small Builds

1965: Basic Building Set

March 6, 2026March 6, 2026 Master Builder

ABCs Bjarne Tveskov Extra Large Builds Futron Sets Futuron Official Sets Space

6990: Futuron Monorail Transport System

August 30, 2020February 12, 2025 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.