Skip to content
Back of the Box Builds

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
    • Submit Instructions!
    • New Instructions
    • New Official Sets
    • New Alternate Builds
    • Minifigs
    • Very Small Builds
    • Small Builds
    • Medium Builds
    • Large Builds
    • Extra Large Builds
    • How BOTBB was Built
  • 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 B

December 5, 2022December 7, 2022 Master Builder 4705 Views

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

Contributions

  1. Name, PDF and .io file submitted on December 5, 2022 by: Valdis
  • ← 6541 – Back B
  • 6358 – Back D →

You May Also Like

6780 – Back E

April 4, 2022April 5, 2022 Master Builder

7101: Lightsaber Duel

October 28, 2021October 28, 2021 Master Builder

920 – Back D

February 2, 2021August 30, 2023 Master Builder

6810 – Back A

September 25, 2019October 25, 2021 Master Builder

671 – Back A

October 20, 2019October 25, 2021 Master Builder

6361 – Back A

July 24, 2022May 17, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

7106: Droid Escape
Episode IV/V/VI Official Sets Small Builds Star Wars Star Wars Sets 

7106: Droid Escape

March 1, 2023March 1, 2023 Master Builder

Year Released: 2001BricklinkInstructions

6594: Gas Transit
Classic Town Gas Station Medium Builds Official Sets Town Town Sets Wrecker 

6594: Gas Transit

November 19, 2020July 8, 2025 Master Builder
550-2: Windmill
Building LEGOLAND Medium Builds Official Sets 

550-2: Windmill

March 3, 2026March 3, 2026 Master Builder
6273: Rock Island Refuge
Box Story Large Builds Official Sets Pirates Pirates I Pirates Sets 

6273: Rock Island Refuge

July 4, 2024July 4, 2024 Master Builder
6982: Explorien Starship
Exploriens Exploriens Sets Extra Large Builds Official Sets 

6982: Explorien Starship

November 9, 2019December 13, 2024 Master Builder
6648: Mag Racer
Classic Town LL Link Official Sets Race Small Builds Town Town Sets 

6648: Mag Racer

November 19, 2020July 11, 2024 Master Builder
4561: Railway Express with Transformer and Speed Regulator
9V Extra Large Builds Official Sets Town Train Train Sets 

4561: Railway Express with Transformer and Speed Regulator

January 5, 2026January 5, 2026 Master Builder
6776: Ogel Control Center
Alpha Team Alpha Team Sets Large Builds Official Sets 

6776: Ogel Control Center

February 12, 2024February 12, 2024 Master Builder
6020: Magic Shop
Castle Castle Sets Dragon Knights Official Sets Small Builds 

6020: Magic Shop

December 28, 2021December 28, 2021 Master Builder
7779: The Batman Dragster: Catwoman Pursuit
Batman I BATMAN™ BATMAN™ Sets Official Sets Small Builds 

7779: The Batman Dragster: Catwoman Pursuit

March 27, 2026June 23, 2026 Master Builder
7139: Ewok Attack
Episode IV/V/VI Official Sets Small Builds Star Wars Star Wars Sets 

7139: Ewok Attack

June 27, 2022February 24, 2023 Master Builder
6199: Hydro Crystalization Station
ABCs Aquazone Aquazone Sets Box Story Extra Large Builds Hydronauts Official Sets Stingrays 

6199: Hydro Crystalization Station

February 18, 2025February 18, 2025 Master Builder
6827: Strata Scooter
Classic Space Classic Space Sets Official Sets Space Very Small Builds 

6827: Strata Scooter

October 13, 2021October 13, 2021 Master Builder
6905: Bi-Wing Blaster
Insectoids Insectoids Sets Official Sets Small Builds 

6905: Bi-Wing Blaster

February 22, 2023February 22, 2023 Master Builder
6872: Xenon X-Craft
Classic Space Classic Space Sets Official Sets Small Builds 

6872: Xenon X-Craft

October 19, 2019April 21, 2026 Master Builder
1916 (Kabaya: Space 3): Starion Patrol
Jørn Thomsen Official Sets Space Space Police II Space Police II Sets Very Small Builds 

1916 (Kabaya: Space 3): Starion Patrol

January 19, 2022February 25, 2025 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

Logo
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.