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

6841 – Back B

October 3, 2019October 25, 2021 Master Builder 4861 Views

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

← 6841 – Back A
6841 – Back C →

You May Also Like

6847 – Back B

January 29, 2025January 29, 2025 Master Builder

6404 – Side

January 6, 2025January 6, 2025 Master Builder

6907 – Back B

October 3, 2024October 3, 2024 Master Builder

6849 – Back C

January 13, 2021January 13, 2021 Master Builder

1490 – Back B

January 23, 2024 Master Builder

6898 – Back C

June 8, 2020May 17, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Exploriens Exploriens Sets Extra Large Builds Official Sets

6982: Explorien Starship

November 9, 2019December 13, 2024 Master Builder

Year Released: 1996BricklinkInstructions (Revision/Addition: P41, Step 35)

Box Plus Castle Castle Sets Dragon Knights Medium Builds Official Sets Playscape/Play Stage Box

1906: Majisto’s Tower

August 1, 2023October 8, 2024 Master Builder

Black Knights Castle Castle Sets Official Sets Small Builds

1491: Dual Defender

October 11, 2021October 11, 2021 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6844: Seismologic Vehicle (Sismobile)

October 22, 2019September 10, 2023 Master Builder

Medium Builds Official Sets Super Model Technic Technic Alternate Builds Technic Sets

120270: The Great Technic Racer

March 8, 2025March 8, 2025 Master Builder

Box Story Castle Castle Sets Extra Large Builds Fright Knights Official Sets

6097: Night Lord’s Castle

March 1, 2023March 17, 2025 Master Builder

Black Knights Castle Castle Sets Extra Large Builds Niels Milan Pedersen Official Sets

6085: Black Monarch’s Castle

July 13, 2021July 29, 2023 Master Builder

Medium Builds Official Sets Studio Sets Studios

1381: Vampire’s Crypt

July 2, 2024July 2, 2024 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

1747: Treasure Cave

May 6, 2022May 6, 2022 Master Builder

Box Plus Different Box Versions Exploriens Exploriens Sets Medium Builds Official Sets

1737: Scorpion Detector (Limited Edition)

March 5, 2026March 5, 2026 Master Builder

Box Plus Mask Medium Builds Official Sets UFO UFO Sets

6999: Cyber Saucer with Promotional Mask

December 16, 2025December 16, 2025 Master Builder

Building Classic Town Medium Builds Official Sets Town Town Sets

6360: Weekend Cottage

October 19, 2019April 4, 2020 Master Builder

Classic Town Medium Builds Official Sets Recreation Town Town Sets

6359: Horse Trailer

October 8, 2024October 8, 2024 Master Builder

ABCs Airport Classic Town Extra Large Builds Official Sets Town Town Sets

6392: Airport

June 28, 2022August 16, 2023 Master Builder

Bonus/Value Pack Sets Classic Town Fire Ice Planet 2002 Ice Planet 2002 Sets Official Sets Small Builds Space Town

1702: Fire Fighter 4 x 4

September 6, 2023September 7, 2023 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.