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 Classic Space Classic Space Alternate Builds Instructions Added Very Small Alt Build Very Small Builds

6841 – Back D

October 3, 2019October 25, 2021 Master Builder 3612 Views

From: 6841: Mineral Detector
Name: TBD
Submitted by: matt_0937
Instructions: View PDF | Download .io File

← 6841 – Back C
6878: Sub Orbital Guardian →

You May Also Like

6841 – Back B

October 3, 2019October 25, 2021 Master Builder

6552 – Back E

May 11, 2024May 13, 2024 Master Builder

6835 – Back B

November 9, 2019December 27, 2021 Master Builder

6734 – Back A

April 7, 2026April 7, 2026 Master Builder

194 – Back D

October 4, 2019November 18, 2021 Master Builder

6509 – Back C

February 3, 2022February 9, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Town Medium Builds Official Sets Recreation Town Town Sets

6355: Derby Trotter

December 28, 2021December 28, 2021 Master Builder

Year Released: 1989BricklinkInstructions

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

4480: Jabba’s Palace

March 18, 2022March 18, 2022 Master Builder

Castle Castle Sets Lion Knights Official Sets Small Builds

6049: Viking Voyager

June 30, 2022June 30, 2022 Master Builder

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

6923: Particle Ionizer

October 1, 2019August 13, 2023 Master Builder

Exo-Force Medium Builds Official Sets

7704: Sonic Phantom

April 28, 2023April 28, 2023 Master Builder

Episode I Medium Builds Official Sets Star Wars Star Wars Sets

7151: Sith Infiltrator

September 1, 2023September 1, 2023 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6234: Renegade’s Raft

May 23, 2022May 23, 2022 Master Builder

Box Story Large Builds Official Sets Pirates Pirates I Pirates Sets

6281: Pirates Perilous Pitfall

February 21, 2025February 21, 2025 Master Builder

Bonus/Value Pack Sets Bonus/Value Packs Exploriens Exploriens Sets Official Sets Small Builds Space

Space 3-Pack: Exploriens

October 2, 2024October 3, 2024 Master Builder

Life on Mars Life on Mars Sets Official Sets Very Small Builds

7302 (1416, Kabaya: Life On Mars 2): Worker Robot

February 25, 2025February 25, 2025 Master Builder

Airport Classic Town Medium Builds Official Sets Town Town Sets

6368: Jet Airliner

January 21, 2021January 21, 2021 Master Builder

Classic Town Hospital Official Sets Small Builds Town Town Sets

6666: Ambulance

October 30, 2021October 30, 2021 Master Builder

Black Falcons Castle Castle Sets Official Sets Small Builds

6035: Castle Guard

December 27, 2021December 27, 2021 Master Builder

ABCs Classic Space Classic Space Sets Large Builds Official Sets Space

6783: Sonar Transmitting Cruiser

May 8, 2022August 15, 2023 Master Builder

Medium Builds Official Sets Robo Force Robo Force Alternate Builds Robo Force Sets Space

2151: Robo Raider

January 14, 2021September 3, 2025 Master Builder

Batman I BATMAN™ BATMAN™ Sets Official Sets Small Builds

7779: The Batman Dragster: Catwoman Pursuit

March 27, 2026March 27, 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
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.