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 Aquazone Aquazone Sets Hydronauts Official Sets Small Builds

6150 (6159): Crystal Detector

February 23, 2023February 18, 2025 Master Builder 6293 Views

Year Released: 1998
Bricklink
Instructions

*Alternate Build Connection: Aqua Rover (LEGO Mania Magazine: May-June 1998)

Back A

Back A

← 6905 – Back D
6150 – Back A →

You May Also Like

1628 – Back A

November 25, 2020July 25, 2024 Master Builder

6393: Big-Rig Truck Stop

June 28, 2022June 28, 2022 Master Builder

6036: Skeleton Surprise

February 28, 2023February 28, 2023 Master Builder

1549 – Back C

February 27, 2023March 5, 2026 Master Builder

6781: SP-Striker

April 19, 2021July 29, 2023 Master Builder

6633 – Back A

April 19, 2021April 19, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

ABCs Official Sets Small Builds UFO UFO Sets

6836: V-Wing Fighter

October 24, 2019March 22, 2025 Master Builder

Year Released: 1997BricklinkInstructions *Alternate Build Connection: Alien Planet Cruiser II

Alpha Team Alpha Team Sets Medium Builds Mission Deep Sea Official Sets

4794: Alpha Team Command Sub

February 12, 2024February 21, 2024 Master Builder

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

7106: Droid Escape

March 1, 2023March 1, 2023 Master Builder

Medium Builds Official Sets Paradisa Town Town Sets

6405: Sunset Stables

September 15, 2022September 15, 2022 Master Builder

Classic Town Fire Medium Builds Official Sets Town Town Sets

6358: Snorkel Squad

April 15, 2021April 15, 2021 Master Builder

Holiday and Event Holiday and Event Sets Official Sets Small Builds

1978: Build-A-Santa Polybag

April 28, 2023April 28, 2023 Master Builder

Classic Town Official Sets Town Town Sets Traffic Very Small Builds

6501: Sport Convertible

July 8, 2022July 8, 2022 Master Builder

ABCs Blacktron II Blacktron II Sets Jørn Thomsen Large Builds Official Sets Space

6981: Aerial Intruder

September 22, 2019August 15, 2023 Master Builder

Bonus/Value Pack Sets Bonus/Value Packs Ice Planet 2002 Ice Planet 2002 Sets Medium Builds Official Sets Space

Ice Planet 2002 Value Pack (VP-1)

March 7, 2026March 7, 2026 Master Builder

Blacktron Blacktron Sets Medium Builds Official Sets

6894: Invader

November 20, 2019November 20, 2019 Master Builder

Classic Town Coast Guard Large Builds Official Sets Town Town Sets

6387: Coastal Rescue Base

July 15, 2022July 15, 2022 Master Builder

Extra Large Builds Jørn Thomsen Official Sets Space Unitron Unitron Sets

6991: Monorail Transport Base

September 28, 2019July 29, 2023 Master Builder

Bjarne Tveskov Different Box Versions Futron Sets Futuron Official Sets Small Builds

6884: Aero-Module

September 24, 2019March 17, 2024 Master Builder

Island Xtreme Stunts Island Xtreme Stunts Sets Medium Builds Official Sets

6735: Air Chase

April 7, 2026April 7, 2026 Master Builder

Black Knights Castle Castle Sets Medium Builds Official Sets

6059: Knight’s Stronghold

July 13, 2021July 13, 2021 Master Builder

Exploriens Exploriens Sets Large Builds Official Sets

6958: Android Base

November 9, 2019April 16, 2021 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.