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 Classic Town Race Town Town Alternate Builds Very Small Builds

1821 – Back B

February 10, 2025February 10, 2025 Master Builder 2795 Views

From: 1821: Rally Racers
Name: TBD
Submitted by: USER
Instructions

← 1821 – Back A
1821 – Back C →

You May Also Like

4504 – Back A

May 15, 2023May 15, 2023 Master Builder

6882 – Back A

September 30, 2019November 18, 2021 Master Builder

4726 – Back A

February 27, 2023February 27, 2023 Master Builder

6021 – Back C

September 25, 2024September 25, 2024 Master Builder

710 – Inside D

February 22, 2024February 22, 2024 Master Builder

6783 – Back D

May 8, 2022May 8, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

ABCs Aquanauts Aquazone Aquazone Sets Medium Builds Official Sets

6175: Crystal Explorer Sub

January 20, 2022March 22, 2025 Master Builder

Year Released: 1995BricklinkInstructions *Alternate Build Connection: Aqua 5

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

ABCs Classic Town Official Sets Small Builds Town Town Sets Traffic

6655: Auto & Tire Repair

June 4, 2023July 31, 2023 Master Builder

Building Classic Town Medium Builds Official Sets Town Town Sets

6349: Vacation House

July 1, 2021July 12, 2021 Master Builder

Divers Medium Builds Official Sets Town Town Sets

6557: Treasure Hunters

December 29, 2021June 28, 2022 Master Builder

ABCs Classic Space Classic Space Sets Large Builds Official Sets Space

6783: Sonar Transmitting Cruiser

May 8, 2022August 15, 2023 Master Builder

ABCs Box Marketing Blurb Jørn Thomsen Large Builds Official Sets Space Space Police II Space Police II Sets

6984: Galactic Mediator

March 18, 2022June 23, 2025 Master Builder

Large Builds Launch Command Official Sets Town Town Sets

6544: Shuttle Transcon 2

July 20, 2022July 20, 2022 Master Builder

Battle Vehicles BIONICLE BIONICLE Sets Extra Large Builds Official Sets

8942: Jetrax T6

March 4, 2026March 4, 2026 Master Builder

Indians Official Sets Very Small Builds Western Western Sets

2845: Indian Chief

October 10, 2023October 10, 2023 Master Builder

Classic Town Construction Official Sets Town Town Sets Very Small Builds

607: Mini Loader

October 19, 2019April 4, 2020 Master Builder

Bonus/Value Pack Sets Castle Castle Sets Forestmen Official Sets Small Builds

1877: Crusader’s Cart

October 11, 2021September 24, 2024 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets Space

1968: {Unknown}

August 28, 2020September 13, 2023 Master Builder

Bonus/Value Pack Sets Futron Sets Futuron Official Sets Small Builds Space

1974-4: Star Quest

September 7, 2023September 8, 2023 Master Builder

Official Sets Space UFO UFO Sets Very Small Builds

6800 (6816, Kabaya: Space 2): Cyber Blaster

October 4, 2024February 25, 2025 Master Builder

Airport Classic Town Large Builds Official Sets Town Town Sets

1682: Space Shuttle

February 27, 2023July 25, 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.