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 6517 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

6872 – Back A

October 19, 2019April 21, 2026 Master Builder

6811 – Back C

April 17, 2020March 14, 2025 Master Builder

6630: Bucket Loader

October 13, 2021October 13, 2021 Master Builder

6927 – Back B

October 22, 2019October 22, 2019 Master Builder

385-2: Build-N-Store Chest

September 8, 2025September 8, 2025 Master Builder

6972 – Back D

September 15, 2019November 21, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Episode IV/V/VI Medium Builds Official Sets Star Wars Star Wars Sets

7130: Snowspeeder

June 28, 2022June 28, 2022 Master Builder

Year Released: 1999BricklinkInstructions

Airport Classic Town Medium Builds Official Sets Town Town Sets

2532: Aircraft and Ground Crew

December 28, 2021December 28, 2021 Master Builder

ABCs Insectoids Insectoids Sets Official Sets Small Builds Space

6907: Sonic Stinger

October 3, 2024March 22, 2025 Master Builder

Basic Large Builds Official Sets Universal Building Set

720: Basic Building Set

February 8, 2024February 9, 2024 Master Builder

Official Sets Town Town Jr Town Sets Traffic Very Small Builds

6422: Telephone Repair

July 28, 2020July 28, 2020 Master Builder

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

4479: TIE Bomber

January 6, 2025January 6, 2025 Master Builder

Classic Town Extra Large Builds Official Sets Police Town Town Sets

6598: Metro PD Station

January 6, 2022January 6, 2022 Master Builder

Harry Potter Harry Potter Sets Medium Builds Official Sets Sorcerer's Stone

4705: Snape’s Class

April 16, 2021April 16, 2021 Master Builder

Islanders Official Sets Pirates Pirates I Pirates Sets Small Builds

6256: Islander Catamaran

June 6, 2022June 6, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Space Supplemental

305: Two Crater Plates

March 6, 2026March 6, 2026 Master Builder

Black Knights Castle Castle Sets Medium Builds Official Sets

6057: Sea Serpent

April 14, 2025April 14, 2025 Master Builder

Official Sets Racers Radio Control Small Builds

8369: Dirt Crusher RC (Yellow)

November 13, 2024November 13, 2024 Master Builder

Classic Space Classic Space Sets Jens Nygaard Knudsen Official Sets Small Builds Space

894: Mobile Ground Tracking Station

January 12, 2021July 29, 2023 Master Builder

Classic Town Fire Large Builds Official Sets Town Town Sets

6385: Fire House-I

August 7, 2022August 7, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

1580: Lunar Scout

July 12, 2021July 12, 2021 Master Builder

Medium Builds Official Sets Town Town Sets

6561: Hot Rod Club

November 10, 2019June 3, 2026 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.