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 7520 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

194: Family

October 4, 2019October 6, 2019 Master Builder

6985: Cosmic Fleet Voyager

September 12, 2019August 16, 2023 Master Builder

6414 – Back B

January 14, 2021December 17, 2025 Master Builder

6551 – Back C

November 21, 2023November 21, 2023 Master Builder

6349 – Back B

July 1, 2021July 1, 2021 Master Builder

2151: Robo Raider

January 14, 2021September 3, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

5986: Amazon Ancient Ruins
Adventurers Adventurers Sets Box Story Extra Large Builds Jungle Official Sets 

5986: Amazon Ancient Ruins

October 29, 2019April 3, 2024 Master Builder

Year Released: 1999BricklinkInstructions The box reads, “The Adventure continues… Deep in the jungle the Adventurers search for treasure in the

6378: Service Station
Classic Town Extra Large Builds Gas Station Official Sets Town Town Sets Wrecker 

6378: Service Station

February 25, 2023February 26, 2023 Master Builder
385-2: Build-N-Store Chest
Basic Official Sets Small Builds Universal Building Set 

385-2: Build-N-Store Chest

September 8, 2025September 8, 2025 Master Builder
6623: Police Car
Classic Town Official Sets Police Town Town Sets Very Small Builds 

6623: Police Car

October 13, 2021October 13, 2021 Master Builder
7260: Wookiee Catamaran
Episode III Large Builds Official Sets Star Wars Star Wars Sets 

7260: Wookiee Catamaran

March 1, 2023March 1, 2023 Master Builder
6837: Cosmic Creeper (Mantis Scavenger)
ABCs Insectoids Insectoids Sets Official Sets Small Builds 

6837: Cosmic Creeper (Mantis Scavenger)

April 2, 2020March 22, 2025 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
6039: Twin Arm Launcher
Castle Castle Sets Lion Knights Official Sets Small Builds 

6039: Twin Arm Launcher

April 10, 2021April 10, 2021 Master Builder
6086: Black Knight’s Castle
Black Knights Castle Castle Sets Extra Large Builds Niels Milan Pedersen Official Sets 

6086: Black Knight’s Castle

October 11, 2021July 29, 2023 Master Builder
7474: Urban Avenger vs. Raptor
Dino Attack Official Sets Small Builds 

7474: Urban Avenger vs. Raptor

April 27, 2023April 27, 2023 Master Builder
4723: Diagon Alley Shops
Box Plus Harry Potter Harry Potter Sets Official Sets Playscape/Play Stage Box Small Builds Sorcerer's Stone 

4723: Diagon Alley Shops

July 10, 2024October 8, 2024 Master Builder
6510: Mud Runner
Official Sets Race Town Town Sets Very Small Builds 

6510: Mud Runner

May 8, 2022May 8, 2022 Master Builder
6524: Blizzard Blazer
Classic Town Official Sets Small Builds Town Town Sets Traffic 

6524: Blizzard Blazer

June 28, 2022June 28, 2022 Master Builder
1728 (6145): Crystal Crawler {with Aqua Playscape}
ABCs Aquanauts Aquazone Aquazone Sets Box Plus Official Sets Playscape/Play Stage Box Small Builds 

1728 (6145): Crystal Crawler {with Aqua Playscape}

August 1, 2023March 22, 2025 Master Builder
6077-2: Forestmen’s River Fortress
Castle Castle Sets Forestmen Large Builds Official Sets 

6077-2: Forestmen’s River Fortress

April 19, 2021February 2, 2022 Master Builder
770: Rescue Set
Hospital LEGOLAND Medium Builds Official Sets 

770: Rescue Set

September 15, 2022February 14, 2024 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.