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
Airport Classic Town Medium Builds Official Sets Town Town Sets 

3439: Spy Runner

May 11, 2022May 11, 2022 Master Builder 5477 Views

Year Released: 2000
Bricklink
Instructions

Back A
  • ← 6512: Landscape Loader
  • 3439 – Back A →

You May Also Like

6672 – Back C

March 29, 2022April 5, 2022 Master Builder

6846: Tri-Star Voyager

September 26, 2019September 28, 2019 Master Builder

6430 – Back C

November 20, 2023November 29, 2023 Master Builder

6399 – Back D

February 24, 2023March 17, 2024 Master Builder

928 (497): Galaxy Explorer

November 24, 2020August 15, 2024 Master Builder

6540 – Back B

September 9, 2026September 9, 2026 Master Builder

EXPLORE MORE OFFICIAL SETS

6010: Supply Wagon
Castle Castle Sets Lion Knights Official Sets Small Builds 

6010: Supply Wagon

July 13, 2021July 13, 2021 Master Builder

Year Released: 1984BricklinkInstructions

2152: Robo Raptor
ABCs Large Builds Official Sets Robo Force Robo Force Sets Space 

2152: Robo Raptor

January 14, 2021March 22, 2025 Master Builder
6972: Polaris I Space Lab
Classic Space Classic Space Sets Large Builds Official Sets 

6972: Polaris I Space Lab

September 12, 2019November 21, 2023 Master Builder
6735: Air Chase
Island Xtreme Stunts Island Xtreme Stunts Sets Medium Builds Official Sets 

6735: Air Chase

April 7, 2026April 7, 2026 Master Builder
6281: Pirates Perilous Pitfall
Box Story Large Builds Official Sets Pirates Pirates I Pirates Sets 

6281: Pirates Perilous Pitfall

February 21, 2025February 21, 2025 Master Builder
6262: King Kahuka’s Throne
Islanders Medium Builds Official Sets Pirates Pirates I Pirates Sets 

6262: King Kahuka’s Throne

June 1, 2022June 1, 2022 Master Builder
6492: Hypno Cruiser
Medium Builds Official Sets Time Cruisers Time Cruisers Sets 

6492: Hypno Cruiser

December 29, 2021March 20, 2025 Master Builder
6441: Deep Reef Refuge
Divers Large Builds Official Sets Town Town Sets 

6441: Deep Reef Refuge

November 6, 2019December 29, 2021 Master Builder
6453: Com-Link Cruiser (Comlink Cruiser)
Official Sets Small Builds Space Port Town Town Sets 

6453: Com-Link Cruiser (Comlink Cruiser)

August 2, 2020July 14, 2021 Master Builder
6828: Twin-Winged Spoiler
Futron Sets Futuron Official Sets Small Builds Space 

6828: Twin-Winged Spoiler

November 20, 2019May 25, 2020 Master Builder
6416: Poolside Paradise
Medium Builds Official Sets Paradisa Town Town Sets 

6416: Poolside Paradise

June 28, 2022June 28, 2022 Master Builder
6232: Skeleton Crew
Official Sets Pirates Pirates I Pirates Sets Very Small Builds 

6232: Skeleton Crew

July 13, 2021July 13, 2021 Master Builder
1974-2: Flyercracker USA
Airport Bonus/Value Pack Sets Classic Town Official Sets Small Builds Town 

1974-2: Flyercracker USA

September 7, 2023September 8, 2023 Master Builder
2331: Barney The Skateboard Bear
Basic Set Duplo Duplo Sets Official Sets Very Small Builds 

2331: Barney The Skateboard Bear

December 29, 2021December 29, 2021 Master Builder
6666: Ambulance
Classic Town Hospital Official Sets Small Builds Town Town Sets 

6666: Ambulance

October 30, 2021October 30, 2021 Master Builder
6799: Showdown Canyon
Box Plus Cowboys Official Sets Playscape/Play Stage Box Small Builds Western Western Sets 

6799: Showdown Canyon

August 1, 2023October 8, 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
  • 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.