Skip to content
Back of the Box Builds

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
    • 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 Classic Space Classic Space Alternate Builds Instructions Added Medium Alt Build Medium Builds Space 

6931 – Back C

January 12, 2021March 14, 2025 Master Builder 3819 Views

From: 6931: FX-Star Patroller
Name: FX-Star and Surface Scout 1
Instructions: View PDF | Download .io File

Contributions

  1. Name, PDF, and .io file submitted January 2021 by: Mr.AstonishedRaccoon
  • ← 6931 – Back B
  • 6849: Satellite Patroller →

You May Also Like

6334 – Back E

June 27, 2022June 27, 2022 Master Builder

Book 7777 – Page 42-43

February 22, 2022September 15, 2022 Master Builder

6533 – Back B

February 3, 2022February 9, 2022 Master Builder

6430 – Back B

November 20, 2023November 29, 2023 Master Builder

1627 – Back D

May 2, 2023May 2, 2023 Master Builder

1760 – Back C

April 11, 2023April 11, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

6392: Airport
ABCs Airport Classic Town Extra Large Builds Official Sets Town Town Sets 

6392: Airport

June 28, 2022August 16, 2023 Master Builder

Year Released: 1985BricklinkInstructions *Alternate Build Connection: 1987 Town, Castle, and Classic Space with Zack Commercial

6207: A-wing Fighter
Episode IV/V/VI Medium Builds Official Sets Star Wars Star Wars Sets 

6207: A-wing Fighter

February 1, 2024February 1, 2024 Master Builder
6876: Alienator
ABCs Bjarne Tveskov Blacktron Blacktron Sets Official Sets Small Builds Space 

6876: Alienator

November 16, 2019October 16, 2024 Master Builder
6670: Rescue Rig
Classic Town Official Sets Small Builds Town Town Sets Wrecker 

6670: Rescue Rig

November 19, 2020November 19, 2020 Master Builder
6890: Cosmic Cruiser
Classic Space Classic Space Sets Medium Builds Official Sets 

6890: Cosmic Cruiser

October 7, 2019October 7, 2019 Master Builder
1858: Droid Scout
Exploriens Exploriens Sets Official Sets Space Very Small Builds 

1858: Droid Scout

July 8, 2022July 8, 2022 Master Builder
6750: Sonic Robot
Classic Space Classic Space Sets Official Sets Small Builds 

6750: Sonic Robot

September 22, 2019September 28, 2019 Master Builder
6973: Deep Freeze Defender
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
4794: Alpha Team Command Sub
Alpha Team Alpha Team Sets Medium Builds Mission Deep Sea Official Sets 

4794: Alpha Team Command Sub

February 12, 2024February 21, 2024 Master Builder
6533: Police 4×4
Classic Town Official Sets Police Small Builds Town Town Sets 

6533: Police 4×4

January 6, 2022January 6, 2022 Master Builder
6336: Launch Response Unit
Launch Command Medium Builds Official Sets Town Town Sets 

6336: Launch Response Unit

July 12, 2021July 12, 2021 Master Builder
1967: System Bonus Pack
Bonus/Value Packs Classic Space Classic Space Sets Duplicate Set Number Official Sets Small Builds Space 

1967: System Bonus Pack

February 13, 2025February 13, 2025 Master Builder
6036: Skeleton Surprise
Castle Castle Sets Official Sets Royal Knights Small Builds 

6036: Skeleton Surprise

February 28, 2023February 28, 2023 Master Builder
5935: Island Hopper
Adventurers Adventurers Sets Dino Island Medium Builds Official Sets 

5935: Island Hopper

April 21, 2025April 21, 2025 Master Builder
5928: Bi-Wing Baron
Adventurers Adventurers Sets Desert Official Sets Small Builds 

5928: Bi-Wing Baron

February 22, 2023February 22, 2023 Master Builder
6289: Red Beard Runner
Extra Large Builds Official Sets Pirates Pirates I Pirates Sets 

6289: Red Beard Runner

July 13, 2021July 13, 2021 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
  • 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.