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 Classic Space Classic Space Alternate Builds Medium Builds Space 

6928 – Back D

January 12, 2021January 12, 2021 Master Builder 3322 Views

From: 6928: Uranium Search Vehicle
Name: TBD
Submitted by: USER
Instructions

  • ← 6928 – Back C
  • 5521: Sea Jet →

You May Also Like

375-1 – Back E

September 11, 2023September 11, 2023 Master Builder

6986 – Back C

May 26, 2023July 11, 2023 Master Builder

6344 – Back C

October 8, 2024October 8, 2024 Master Builder

1980 Kipper Commercial

April 16, 2025April 16, 2025 Master Builder

6388 – Back A

July 1, 2022July 1, 2022 Master Builder

6250 – Back B

February 20, 2025February 20, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

4720: Knockturn Alley
Chamber of Secrets Harry Potter Harry Potter Sets Medium Builds Official Sets 

4720: Knockturn Alley

July 9, 2024June 23, 2026 Master Builder

Year Released: 2003BricklinkInstructions

6359: Horse Trailer
Classic Town Medium Builds Official Sets Recreation Town Town Sets 

6359: Horse Trailer

October 8, 2024October 8, 2024 Master Builder
6661: TV Van (Mobile TV Studio)
Classic Town Official Sets Small Builds Town Town Sets Traffic 

6661: TV Van (Mobile TV Studio)

February 3, 2022February 3, 2022 Master Builder
454: Two Lunar Landing Plates
Classic Space Classic Space Sets Official Sets Space Supplemental 

454: Two Lunar Landing Plates

July 11, 2024July 11, 2024 Master Builder
6340: Hook & Ladder
Classic Town Fire Medium Builds Official Sets Town Town Sets 

6340: Hook & Ladder

December 29, 2021December 29, 2021 Master Builder
1876: Soil Scooper
Bonus/Value Pack Sets Classic Town Official Sets Small Builds Town Town Sets Traffic 

1876: Soil Scooper

October 11, 2021September 7, 2023 Master Builder
1843-2: {Spyrius Unknown}
Bonus/Value Pack Sets Official Sets Small Builds Space Spyrius Spyrius Sets 

1843-2: {Spyrius Unknown}

September 8, 2023September 13, 2023 Master Builder
920 (483): Alpha-1 Rocket Base
Classic Space Classic Space Sets Jens Nygaard Knudsen Medium Builds Official Sets Space 

920 (483): Alpha-1 Rocket Base

February 2, 2021July 31, 2023 Master Builder
7128: Speeder Bikes
Episode IV/V/VI Official Sets Small Builds Star Wars Star Wars Sets 

7128: Speeder Bikes

July 14, 2021July 14, 2021 Master Builder
4563: Load N’ Haul Railroad
9V Extra Large Builds Official Sets Town Train Train Sets 

4563: Load N’ Haul Railroad

July 26, 2022June 23, 2026 Master Builder
6334: Wave Jump Racers
Classic Town Medium Builds Official Sets Race Town Town Sets 

6334: Wave Jump Racers

June 27, 2022June 27, 2022 Master Builder
7314: Recon-Mech RP
Life on Mars Life on Mars Sets Medium Builds Official Sets Space 

7314: Recon-Mech RP

July 14, 2021July 14, 2021 Master Builder
6802: Space Probe
Classic Space Classic Space Sets Official Sets Space Very Small Builds 

6802: Space Probe

October 10, 2022October 10, 2022 Master Builder
6469: Spaceport Bonus Pack
Bonus/Value Pack Alternate Builds Bonus/Value Pack Sets Bonus/Value Packs Medium Builds Official Sets Space Port Town Town Sets 

6469: Spaceport Bonus Pack

March 3, 2025March 3, 2025 Master Builder
4559: Cargo Railway (High Speed Train Starter Set)
9V Extra Large Builds Official Sets Town Train Train Sets 

4559: Cargo Railway (High Speed Train Starter Set)

October 26, 2026October 26, 2026 Master Builder
6348: Surveillance Squad
Classic Town Large Builds Official Sets Police Town Town Sets 

6348: Surveillance Squad

June 23, 2026June 23, 2026 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.