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

ABCs Classic Space Classic Space Sets Large Builds Official Sets Space

6783: Sonar Transmitting Cruiser

May 8, 2022August 15, 2023 Master Builder 7023 Views

Year Released: 1986
Bricklink
Instructions

*Alternate Build Connection: BrickJournal Issue 6 Volume 2 Page 39 – Proto 1

Back A

Back A

← 6641: 4-Wheelin’ Truck (Four Wheelin’ Truck)
6783 – Back A →

You May Also Like

8925: Barraki Deepsea Patrol

March 3, 2026March 3, 2026 Master Builder

7260: Wookiee Catamaran

March 1, 2023March 1, 2023 Master Builder

6875 – Back A

September 16, 2019March 14, 2025 Master Builder

4591: Star Strike

February 21, 2025February 21, 2025 Master Builder

6812 – Back B

February 12, 2021January 6, 2025 Master Builder

1592-2: Town Square – Castle Scene (Dutch Version)

October 22, 2021October 22, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Space Classic Space Sets Mads Rye Official Sets Small Builds

6882: Walking Astro Grappler

September 30, 2019April 2, 2025 Master Builder

Year Released: 1985Designer: Mads RyeBricklinkInstructions *Alternate Build Connection: 6876: Alienator, 6878: Sub Orbital Guardian

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6237: Pirates’ Plunder

February 8, 2022February 8, 2022 Master Builder

Airport Classic Town Large Builds Official Sets Town Town Sets

6345: Aerial Acrobats

January 29, 2021September 15, 2022 Master Builder

Bonus/Value Pack Sets Bonus/Value Packs Official Sets Small Builds

1476: 5 Set Bonus Pack

July 22, 2024October 2, 2024 Master Builder

ABCs Official Sets Race Town Town Sets Very Small Builds

6677: Motocross Racing

June 8, 2023July 31, 2023 Master Builder

Launch Command Medium Builds Official Sets Town Town Sets

6336: Launch Response Unit

July 12, 2021July 12, 2021 Master Builder

Bonus/Value Pack Sets Classic Town Fire Ice Planet 2002 Ice Planet 2002 Sets Official Sets Small Builds Space Town

1704: {Unknown – Ice Planet Satellite Plow ?}

September 6, 2023September 7, 2023 Master Builder

Castle Castle Sets Official Sets Royal Knights Small Builds

6036: Skeleton Surprise

February 28, 2023February 28, 2023 Master Builder

Holiday and Event Holiday and Event Sets Official Sets Small Builds

1549: Santa and Chimney

February 27, 2023March 5, 2026 Master Builder

Holiday and Event Holiday and Event Sets Official Sets Very Small Builds

1627: Santa Polybag

May 2, 2023May 2, 2023 Master Builder

Batman I BATMAN™ BATMAN™ Sets Official Sets Small Builds

7779: The Batman Dragster: Catwoman Pursuit

March 27, 2026June 23, 2026 Master Builder

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

4766: Graveyard Duel

May 16, 2023December 16, 2025 Master Builder

Extra Large Builds Official Sets Pirates Pirates I Pirates Sets

6289: Red Beard Runner

July 13, 2021July 13, 2021 Master Builder

Bjarne Tveskov Bonus/Value Pack Sets Futron Sets Futuron Official Sets Space Very Small Builds

1620: Astro Dart

September 6, 2023September 7, 2023 Master Builder

Extreme Team Official Sets Small Builds Town Town Sets

2963: Extreme Racer

January 30, 2024January 30, 2024 Master Builder

ABCs Classic Town Extra Large Builds Harbor Official Sets Town Town Sets Wrecker

6541: Intercoastal Seaport

January 25, 2022February 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
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.