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 Res-Q Small Builds Town Town Alternate Builds

6431 – Back B

January 20, 2022January 20, 2022 Master Builder 3768 Views

From: 6431: Road Rescue
Name: TBD
Submitted by: USER
Instructions:

← 6431 – Back A
6431 – Back C →

You May Also Like

7150 – Back C

April 21, 2026April 21, 2026 Master Builder

6040 – Back C

August 8, 2024September 25, 2024 Master Builder

Book 260 – Page 12-13

November 8, 2021November 11, 2021 Master Builder

6821 – Back A

February 17, 2026February 17, 2026 Master Builder

6361: Mobile Crane

April 9, 2020April 9, 2020 Master Builder

6907 – Back A

October 3, 2024October 3, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

ABCs Futron Sets Futuron Large Builds Official Sets Space

6932: Stardefender 200

September 24, 2019August 15, 2023 Master Builder

Year Released: 1987BricklinkInstructions *Alternate Build Connection: 928 – Back A, 6987 – Back B, 6981: Aerial Intruder, 6939: Saucer Centurion

Castle Castle Sets Lion Knights Official Sets Small Builds

6012: Siege Cart

September 24, 2024September 24, 2024 Master Builder

ABCs Aquanauts Aquazone Aquazone Sets Extra Large Builds Jørn Thomsen Official Sets

6195: Neptune Discovery Lab (Aqua Dome 7)

January 20, 2022February 11, 2025 Master Builder

Imperial Guards Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6247: Bounty Boat

May 10, 2022May 10, 2022 Master Builder

Extra Large Builds Official Sets Studio Sets Studios

1382: Scary Laboratory

August 10, 2026August 10, 2026 Master Builder

Castle Castle Sets Official Sets Very Small Builds Wolfpack

1596: Ghostly Hideout

July 25, 2024July 25, 2024 Master Builder

Classic Town Fire Large Builds Official Sets Town Town Sets

6385: Fire House-I

August 7, 2022August 7, 2022 Master Builder

Castle Castle Sets Dragon Knights Medium Builds Official Sets

6048: Majisto’s Magical Workshop

October 14, 2021October 14, 2021 Master Builder

Classic Town Hospital Medium Builds Official Sets Town Town Sets

6356: Med-Star Rescue Plane

March 16, 2022March 16, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

1499: Twin Starfire

February 3, 2021February 3, 2021 Master Builder

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

6210: Jabba’s Sail Barge

February 1, 2024February 1, 2024 Master Builder

Basic Extra Large Builds Official Sets Universal Building Set

735: Basic Building Set

September 15, 2022September 15, 2022 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

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6808: Galaxy Trekkor

January 21, 2021January 21, 2021 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6826: Crater Crawler

September 26, 2019October 22, 2019 Master Builder

Airport Bonus/Value Pack Sets Classic Town Official Sets Small Builds Town

1974-2: Flyercracker USA

September 7, 2023September 8, 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.