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

Classic Space Classic Space Sets Official Sets Very Small Builds

6841: Mineral Detector

October 3, 2019October 3, 2019 Master Builder 6258 Views

Year Released: 1980
Bricklink

Back A
Back B
Back C
Back D

← 6881 – Back D
6841 – Back A →

You May Also Like

6423: Tow-away Truck

July 10, 2026July 10, 2026 Master Builder

4555: Cargo Station

January 2, 2024January 2, 2024 Master Builder

6312: Straight Road Plates

October 10, 2022October 10, 2022 Master Builder

6402 – Back A

October 5, 2019November 18, 2021 Master Builder

2154: Robo Master

June 14, 2023February 11, 2025 Master Builder

7711: Sentry

August 11, 2023August 11, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Basic Set Duplo Duplo Sets Official Sets Very Small Builds

1657: Bird

December 28, 2021December 29, 2021 Master Builder

Year Released: 1990Bricklink

Adventurers Adventurers Sets Dino Island Medium Builds Official Sets

5935: Island Hopper

April 21, 2025April 21, 2025 Master Builder

Building Classic Town Large Builds Official Sets Town Town Sets

6388: Holiday Home with Caravan

July 1, 2022July 1, 2022 Master Builder

Divers Official Sets Small Builds Town Town Sets

6556: Scuba Squad

June 28, 2022June 28, 2022 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6232: Skeleton Crew

July 13, 2021July 13, 2021 Master Builder

Box Story Large Builds Official Sets Pirates Pirates I Pirates Sets

6279: Skull Island

February 21, 2025February 21, 2025 Master Builder

Medium Builds Official Sets Paradisa Town Town Sets

6416: Poolside Paradise

June 28, 2022June 28, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6846: Tri-Star Voyager

September 26, 2019September 28, 2019 Master Builder

Box Marketing Blurb Extra Large Builds Jørn Thomsen M:Tron M:Tron Sets Official Sets

6989: Mega Core Magnetizer (Multi Core Magentizer)

September 15, 2019February 18, 2026 Master Builder

Medium Builds Official Sets Paradisa Town Town Sets

6405: Sunset Stables

September 15, 2022September 15, 2022 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6633: Family Car

April 19, 2021April 19, 2021 Master Builder

Bonus/Value Packs Futron Sets Futuron Official Sets Small Builds Space

1616: Space Combi-Pack

September 6, 2023September 6, 2023 Master Builder

Castle Castle Sets Lion Knights Official Sets Very Small Builds

6022: Horse Cart

October 19, 2019April 4, 2020 Master Builder

Classic Town Hospital Official Sets Small Builds Town Town Sets

6666: Ambulance

October 30, 2021October 30, 2021 Master Builder

Official Sets Rock Raiders Rock Raiders Sets Small Builds

4950: Loader-Dozer

November 10, 2019December 16, 2019 Master Builder

Extra Large Builds Goblet of Fire Harry Potter Harry Potter Sets Official Sets

4766: Graveyard Duel

May 16, 2023December 16, 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.