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
- 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 5484 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

6905 – Back A

February 22, 2023February 22, 2023 Master Builder

6980 – Back B

July 21, 2021July 21, 2021 Master Builder

671 – Back D

October 20, 2019October 25, 2021 Master Builder

4714 – Back B

March 2, 2023March 2, 2023 Master Builder

Classic Space Remote Controlled Vehicle

May 26, 2023February 12, 2025 Master Builder

6503 – Back C

July 9, 2022July 9, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

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

Year Released: 1990Designer: Bjarne TveskovBricklinkInstructions *This set was available in 1616: Space Combi-Pack. The back of this box was glued to the

Bonus/Value Pack Alternate Builds Castle Castle Alternate Builds Instructions Added Official Sets Royal Knights Small Alt Build Small Builds Space Spyrius Spyrius Alternate Builds

1843 – Bottom

January 22, 2021March 14, 2025 Master Builder

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

7110: Landspeeder

June 21, 2022March 1, 2023 Master Builder

9V Extra Large Builds Official Sets Town Train Train Sets

4561: Railway Express with Transformer and Speed Regulator

January 5, 2026January 5, 2026 Master Builder

Blacktron Blacktron Sets Bonus/Value Packs Castle Castle Sets Classic Town Forestmen Official Sets Small Builds Space Town Traffic

1675: Legoland Triple Pack

October 12, 2021October 12, 2021 Master Builder

Official Sets Race Town Town Sets Very Small Builds

6503: Sprint Racer

July 9, 2022July 9, 2022 Master Builder

Classic Town Official Sets Police Town Town Sets Very Small Builds

600: Police Patrol

July 11, 2024July 11, 2024 Master Builder

Medium Builds Official Sets Western Western Sets

6764: Sheriff’s Lock-Up

September 1, 2024September 1, 2024 Master Builder

Medium Builds Official Sets Space Unitron Unitron Sets

1787: Crater Cruiser

April 9, 2020July 18, 2020 Master Builder

9V Extra Large Builds Official Sets Town Train Train Sets

4565: Freight and Crane Railway

January 5, 2026January 5, 2026 Master Builder

Official Sets Space UFO UFO Sets Very Small Builds

6800 (6816, Kabaya: Space 2): Cyber Blaster

October 4, 2024February 25, 2025 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets

6930: Space Supply Station

September 13, 2019September 11, 2023 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6633: Family Car

April 19, 2021April 19, 2021 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6804: Surface Rover

September 25, 2019September 28, 2019 Master Builder

Black Falcons Castle Castle Sets Daniel August Krentz Large Builds Official Sets

6073: Knight’s Castle

October 23, 2019July 29, 2023 Master Builder

Box Story Large Builds Ninja Ninja Alternate Builds Ninja Official Sets Official Sets

6088: Robber’s Retreat

January 24, 2022April 3, 2024 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
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.