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

6856 – Back A

November 9, 2022November 14, 2022 Master Builder 4601 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

6518 – Back C

May 23, 2022May 23, 2022 Master Builder

8675 – Back B

July 15, 2024August 28, 2024 Master Builder

Viva’s Space Scooter

March 28, 2026March 28, 2026 Master Builder

5928: Bi-Wing Baron

February 22, 2023February 22, 2023 Master Builder

6501 – Back A

July 8, 2022July 8, 2022 Master Builder

6596 – Back D

September 15, 2022September 15, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

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

6923: Particle Ionizer

October 1, 2019August 13, 2023 Master Builder

Year Released: 1990BricklinkInstructions (Revision/Addition: P12, Step 17) *Alternate Build Connection: 6862: Secret Space Voyager

Castle Castle Sets Official Sets Very Small Builds

2586: King & Throne (Chess King)

January 29, 2021January 29, 2021 Master Builder

Battle Vehicles BIONICLE BIONICLE Sets Extra Large Builds Official Sets

8942: Jetrax T6

March 4, 2026March 4, 2026 Master Builder

Medium Builds Official Sets Pirates Pirates I Pirates Sets

6249: Pirates Ambush

November 16, 2019February 20, 2025 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6842: Shuttle Craft

October 21, 2019October 21, 2019 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6806: Surface Hopper

April 16, 2021April 16, 2021 Master Builder

Airport Classic Town Official Sets Small Builds Town Town Sets

6687: Turbo Prop I

December 27, 2021December 27, 2021 Master Builder

Bonus/Value Pack Sets Castle Castle Sets Forestmen Official Sets Small Builds

1877: Crusader’s Cart

October 11, 2021September 24, 2024 Master Builder

Box Story Imperial Armada Large Builds Official Sets Pirates Pirates I Pirates Sets

6280: Armada Flagship

July 13, 2021February 20, 2025 Master Builder

9V Medium Builds Official Sets Town Train Train Sets

4532: Manual Level Crossing

May 22, 2026May 22, 2026 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

889: Radar Truck

September 22, 2019September 28, 2019 Master Builder

Exploriens Exploriens Sets Official Sets Space Very Small Builds

6815: Hovertron

June 28, 2022June 28, 2022 Master Builder

Box Plus Cowboys Official Sets Playscape/Play Stage Box Small Builds Western Western Sets

6799: Showdown Canyon

August 1, 2023October 8, 2024 Master Builder

Extra Large Builds Model Team Model Team Sets Official Sets

5580: Highway Rig

February 9, 2026February 9, 2026 Master Builder

Basic Official Sets Small Builds Universal Building Set

385-2: Build-N-Store Chest

September 8, 2025September 8, 2025 Master Builder

Classic Town Official Sets Race Town Town Sets Very Small Builds

1750: Renault Formula 1 Racer

July 13, 2021July 13, 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.