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 Aquashark Aquazone Aquazone Alternate Builds Instructions Added Small Alt Build Small Builds

6155 – Back C

March 20, 2023March 22, 2023 Master Builder 5747 Views

From: 6155: Deep Sea Predator
Name: Crystal Defender ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted on March 9, 2023 by: Valdis

← 6155 – Back A
6675: Road & Trail 4×4 →

You May Also Like

6543 – Back F

July 22, 2022July 22, 2022 Master Builder

6675: Road & Trail 4×4

March 20, 2023March 20, 2023 Master Builder

4762 – Back A

May 16, 2023May 16, 2023 Master Builder

920 – Back C

February 2, 2021October 25, 2021 Master Builder

6665 – Back B

June 1, 2022June 1, 2022 Master Builder

4557 – Back A

July 10, 2026July 10, 2026 Master Builder

EXPLORE MORE OFFICIAL SETS

Episode III Large Builds Official Sets Star Wars Star Wars Sets

7258: Wookiee Attack

March 1, 2023March 1, 2023 Master Builder

Year Released: 2005BricklinkInstructions

Classic Town Official Sets Police Town Town Sets Very Small Builds

6623: Police Car

October 13, 2021October 13, 2021 Master Builder

Extra Large Builds Imperial Guards Official Sets Pirates Pirates I Pirates Sets

6277: Imperial Trading Post

January 6, 2022January 6, 2022 Master Builder

Basic Set Duplo Duplo Sets Official Sets Very Small Builds

2331: Barney The Skateboard Bear

December 29, 2021December 29, 2021 Master Builder

Castle Castle Sets Knights Kingdom I Official Sets Small Builds

4818: Dragon Rider

October 8, 2024October 8, 2024 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets

6891: Gamma-V Laser Craft

September 13, 2019August 3, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6750: Sonic Robot

September 22, 2019September 28, 2019 Master Builder

ABCs Official Sets Small Builds UFO UFO Sets

6836: V-Wing Fighter

October 24, 2019March 22, 2025 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

1558: Mobile Command Trailer

December 18, 2021December 18, 2021 Master Builder

Episode I Official Sets Small Builds Star Wars Star Wars Sets

7126: Battle Droid Carrier

July 26, 2023July 26, 2023 Master Builder

Episode I Official Sets Small Builds Star Wars Star Wars Sets

7111: Droid Fighter

July 14, 2021July 14, 2021 Master Builder

ABCs Castle Castle Sets Classic Castle Daniel August Krentz Different Set Numbers Duplicate Set Number Extra Large Builds Official Sets

375-2 (6075-2): Castle

November 8, 2019September 5, 2025 Master Builder

Adventurers Adventurers Sets Desert Medium Builds Official Sets

5948: Desert Expedition

October 8, 2024October 8, 2024 Master Builder

Bjarne Tveskov Futron Sets Futuron Official Sets Space Very Small Builds

6830: Space Patroller

April 8, 2020July 29, 2023 Master Builder

Box Plus Classic Space Classic Space Sets Jens Nygaard Knudsen LL Link Official Sets Playscape/Play Stage Box Small Builds Space

918: Space Transport

April 27, 2020January 6, 2026 Master Builder

ABCs Exploriens Exploriens Sets Official Sets Small Builds Space

6856: Planetary Decoder

April 16, 2021March 22, 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.