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 Aquanauts Aquazone Aquazone Alternate Builds Instructions Added Medium Alt Build Medium Builds

6175 – Back D

February 28, 2025March 3, 2025 Master Builder 4235 Views

From: 6175: Crystal Explorer Sub
Name: Deep Sea Outpost ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF, and .io file submitted on February 28, 2025 by: Welcome Bricks

← 1415 – Back A
Kabaya: Town Space Port →

You May Also Like

6672 – Back C

March 29, 2022April 5, 2022 Master Builder

6115 – Back B

March 20, 2023March 21, 2023 Master Builder

7186 – Instructions 4

April 21, 2026April 21, 2026 Master Builder

6927 – Back A

October 22, 2019October 22, 2019 Master Builder

1821 – Back C

February 10, 2025February 10, 2025 Master Builder

6036 – Back B

May 12, 2024May 13, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

Official Sets Rock Raiders Rock Raiders Sets Very Small Builds

4920: Rapid Rider

March 1, 2023March 1, 2023 Master Builder

Year Released: 1999BricklinkInstructions

Airport LEGOLAND Medium Builds Official Sets

371-3: Seaplane

October 8, 2024October 8, 2024 Master Builder

Medium Builds Official Sets Technic Technic Sets

8044: Universal Pneumatic Set

August 23, 2024August 23, 2024 Master Builder

Basic Box Plus Large Builds Official Sets Storage Container Universal Building Set

1963: Basic Set with Storage Case

October 9, 2024October 9, 2024 Master Builder

Exo-Force Official Sets Small Builds

7711: Sentry

August 11, 2023August 11, 2023 Master Builder

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

7127: Imperial AT-ST

December 29, 2021December 29, 2021 Master Builder

Official Sets Pirates Pirates I Pirates Sets Small Builds

6258: Smuggler’s Shanty

July 8, 2022July 8, 2022 Master Builder

Episode I Official Sets Small Builds Star Wars Star Wars Sets

7126: Battle Droid Carrier

July 26, 2023July 26, 2023 Master Builder

Dino Attack Official Sets Small Builds

7473: Street Sprinter vs. Mutant Lizard

March 21, 2023March 21, 2023 Master Builder

Official Sets Space Port Town Town Sets Very Small Builds

6452: Mini Rocket Launcher

October 3, 2024October 3, 2024 Master Builder

Chamber of Secrets Extra Large Builds Harry Potter Harry Potter Sets Official Sets

4730: The Chamber of Secrets

January 23, 2024January 23, 2024 Master Builder

Classic Town Fire Official Sets Town Town Sets Very Small Builds

6505: Fire Chief’s Car

July 8, 2022July 8, 2022 Master Builder

ABCs Box Story Ice Planet 2002 Ice Planet 2002 Sets Jørn Thomsen Large Builds Official Sets Space

6973: Deep Freeze Defender

September 26, 2019December 17, 2024 Master Builder

Castle Castle Sets Lion Knights Official Sets Small Builds

6039: Twin Arm Launcher

April 10, 2021April 10, 2021 Master Builder

Classic Town Construction Official Sets Small Builds Town Town Sets

6662: Backhoe

July 8, 2022July 8, 2022 Master Builder

ABCs M:Tron M:Tron Sets Medium Builds Official Sets

6923: Particle Ionizer

October 1, 2019August 13, 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.