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 4527 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

8925 – Instructions A

March 3, 2026March 3, 2026 Master Builder

6848: Interplanetary Shuttle

March 11, 2024March 11, 2024 Master Builder

735 – Inside C

September 15, 2022September 15, 2022 Master Builder

6357 – Back D

June 6, 2022June 7, 2022 Master Builder

1621: Lunar MPV Vehicle

September 6, 2023September 7, 2023 Master Builder

6850 – Back B

September 24, 2019March 14, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

Duplo Duplo Sets Official Sets Playhouse Small Builds

2788: Katie’s Kitchen

July 10, 2024July 10, 2024 Master Builder

Year Released: 1994Bricklink

Construction Official Sets Town Town Jr Town Sets Very Small Builds

6470: Mini-dumper

July 10, 2026July 10, 2026 Master Builder

Black Knights Castle Castle Sets Medium Builds Official Sets

6057: Sea Serpent

April 14, 2025April 14, 2025 Master Builder

Episode II Medium Builds Official Sets Star Wars Star Wars Sets

7143: Jedi Starfighter

December 29, 2021December 29, 2021 Master Builder

ABCs Exploriens Exploriens Sets Official Sets Small Builds Space

6856: Planetary Decoder

April 16, 2021March 22, 2025 Master Builder

Aquazone Aquazone Sets Box Story Hydronauts Large Builds Official Sets

6180: Hydro Search Sub

February 18, 2025February 18, 2025 Master Builder

Medium Builds Official Sets Space Port Town Town Sets

6454: Countdown Corner

July 14, 2021July 14, 2021 Master Builder

ABCs Blacktron Blacktron Sets Bonus/Value Pack Sets LL Link Official Sets Very Small Builds

1875: Meteor Monitor

July 14, 2021January 22, 2026 Master Builder

Classic Town Construction Official Sets Small Builds Town Town Sets

6662: Backhoe

July 8, 2022July 8, 2022 Master Builder

Castle Castle Sets Lion Knights Medium Builds Official Sets

6060: Knight’s Challenge

July 2, 2024October 1, 2024 Master Builder

Airport Classic Town Large Builds Official Sets Town Town Sets

6345: Aerial Acrobats

January 29, 2021September 15, 2022 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

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

6660: Hook and Haul Wrecker

June 23, 2025June 23, 2025 Master Builder

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

6973: Deep Freeze Defender

September 26, 2019December 17, 2024 Master Builder

Large Builds Launch Command Official Sets Town Town Sets

6544: Shuttle Transcon 2

July 20, 2022July 20, 2022 Master Builder

BIONICLE BIONICLE Sets Large Builds Official Sets Playsets

8926: Toa Undersea Attack

March 3, 2026March 3, 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
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.