Skip to content

Back of the Box Builds

LEGO Alternate Builds!

SETS
- Adventurers
- Aquazone
- 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
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Alternate Builds Exploriens Exploriens Alternate Builds Instructions Added Small Alt Build Small Builds Space

6856 – Back A

November 9, 2022November 14, 2022 Master Builder 3257 Views

From: 6856: Planetary Decoder
Name: Planetary Fossil Hunter ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted on November 9, 2022 by: Valdis

← 6541 – Back A
6889 – Back A →

You May Also Like

6809 – Back A

April 4, 2020April 4, 2020 Master Builder

6633 – Back C

April 19, 2021April 19, 2021 Master Builder

6882: Walking Astro Grappler

September 30, 2019April 2, 2025 Master Builder

6958: Android Base

November 9, 2019April 16, 2021 Master Builder

6950: Mobile Rocket Transport

January 12, 2021July 29, 2023 Master Builder

6458 – Back A

December 17, 2025December 17, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

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

6086: Black Knight’s Castle

October 11, 2021July 29, 2023 Master Builder

Year Released: 1992Designer: Niels Milan PedersenBricklinkInstructions

Classic Space Classic Space Sets Official Sets Small Builds

6871: Star Patrol Launcher

September 27, 2019September 30, 2019 Master Builder

Box Plus Harry Potter Harry Potter Sets Official Sets Playscape/Play Stage Box Small Builds Sorcerer's Stone

4723: Diagon Alley Shops

July 10, 2024October 8, 2024 Master Builder

Hospital LEGOLAND Medium Builds Official Sets

780: Road Construction Set

February 14, 2024February 14, 2024 Master Builder

Classic Town Harbor Official Sets Small Builds Town Town Sets Wrecker

6663: Wave Rebel

June 6, 2022June 6, 2022 Master Builder

Black Knights Castle Castle Sets Medium Builds Official Sets

6059: Knight’s Stronghold

July 13, 2021July 13, 2021 Master Builder

Extra Large Builds Official Sets Spider-Man Spider-Man 2 Spider-Man Sets

4856: Doc Ock’s Hideout

December 16, 2025December 16, 2025 Master Builder

Black Knights Castle Castle Sets Official Sets Very Small Builds

6034: Black Monarch’s Ghost

January 16, 2022January 16, 2022 Master Builder

Building Classic Town Medium Builds Official Sets Town Town Sets

6349: Vacation House

July 1, 2021July 12, 2021 Master Builder

ABCs Futron Sets Futuron Large Builds Official Sets Space

6932: Stardefender 200

September 24, 2019August 15, 2023 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6509: Red Devil Racer

October 12, 2021October 12, 2021 Master Builder

Divers Medium Builds Official Sets Town Town Sets

6557: Treasure Hunters

December 29, 2021June 28, 2022 Master Builder

Box Story Ice Planet 2002 Ice Planet 2002 Sets Jørn Thomsen Large Builds Official Sets Space

6983: Ice Station Odyssey

November 9, 2019March 20, 2025 Master Builder

Classic Town Off-Road Official Sets Small Builds Town Town Sets

6672: Safari Off-Road Vehicle

January 28, 2022January 28, 2022 Master Builder

Large Builds Official Sets UFO UFO Sets

6915: Warp Wing Fighter

November 9, 2019November 9, 2019 Master Builder

Castle Castle Sets Daniel August Krentz Large Builds Lion Knights Official Sets

6067: Guarded Inn

February 9, 2021July 29, 2023 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
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.