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
ABCs Jørn Thomsen Medium Builds Official Sets Spyrius Spyrius Sets 

6939: Saucer Centurion

November 9, 2019October 1, 2024 Master Builder 7512 Views

Year Released: 1994
Designer: Jørn Thomsen
Bricklink
Instructions

*Alternate Build Connection: 6957 – Back A

Back A
Back B
Back C
Back D
  • ← 6958 – Back D
  • 6939 – Back D →

You May Also Like

6776: Ogel Control Center

February 12, 2024February 12, 2024 Master Builder

6273: Rock Island Refuge

July 4, 2024July 4, 2024 Master Builder

6384 – Back E

December 28, 2021December 28, 2021 Master Builder

7101: Lightsaber Duel

October 28, 2021October 28, 2021 Master Builder

6021: Jousting Knights

September 25, 2024September 25, 2024 Master Builder

6810: Laser Ranger

September 25, 2019July 29, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

6090: Royal Knight’s Castle
Castle Castle Sets Extra Large Builds Niels Milan Pedersen Official Sets Royal Knights 

6090: Royal Knight’s Castle

July 13, 2021July 29, 2023 Master Builder

Year Released: 1995Designer: Niels Milan PedersenBricklinkInstructions

1912: Car (Set A, 1)
Basic Happy Meal McDonalds Official Sets Polybag Universal Building Set Very Small Builds 

1912: Car (Set A, 1)

April 1, 2025April 1, 2025 Master Builder
6977: Arachnoid Star Base
Insectoids Insectoids Sets Large Builds Official Sets 

6977: Arachnoid Star Base

November 9, 2019November 9, 2019 Master Builder
6975: Alien Avenger
Large Builds Official Sets Space UFO UFO Sets 

6975: Alien Avenger

November 9, 2019July 21, 2025 Master Builder
1526: Unknown (Space Radar Buggy)
Classic Space Classic Space Sets Official Sets Small Builds Space 

1526: Unknown (Space Radar Buggy)

August 20, 2025August 29, 2025 Master Builder
6958: Android Base
Exploriens Exploriens Sets Large Builds Official Sets 

6958: Android Base

November 9, 2019April 16, 2021 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
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
1665: Duel FX Racers
Official Sets Small Builds Town Town Sets 

1665: Duel FX Racers

April 30, 2024April 30, 2024 Master Builder
6236: King Kahuka
Islanders Official Sets Pirates Pirates I Pirates Sets Small Builds 

6236: King Kahuka

December 28, 2021December 28, 2021 Master Builder
6440: Jetport Fire Squad
Airport Classic Town Medium Builds Official Sets Town Town Sets 

6440: Jetport Fire Squad

December 29, 2021December 29, 2021 Master Builder
6041: Armor Shop
Castle Castle Sets Lion Knights Medium Builds Official Sets 

6041: Armor Shop

September 25, 2024September 25, 2024 Master Builder
8369: Dirt Crusher RC (Yellow)
Official Sets Racers Radio Control Small Builds 

8369: Dirt Crusher RC (Yellow)

November 13, 2024November 13, 2024 Master Builder
6074: Black Falcon’s Fortress
Black Falcons Castle Castle Sets Daniel August Krentz Large Builds Official Sets 

6074: Black Falcon’s Fortress

October 14, 2021July 29, 2023 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
4751: Harry and the Marauder’s Map
Harry Potter Harry Potter Sets Official Sets Prisoner of Azkaban Small Builds 

4751: Harry and the Marauder’s Map

May 16, 2023May 16, 2023 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.