Skip to content

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
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 4361 Views

Year Released: 2000
Bricklink
Instructions

Back A

← 6512: Landscape Loader
3439 – Back A →

You May Also Like

6352 – Back E

December 22, 2023January 1, 2024 Master Builder

565 – Back C

December 28, 2023July 11, 2024 Master Builder

6484 – Back A

September 14, 2023September 18, 2023 Master Builder

6642 – Back A

April 8, 2020April 8, 2020 Master Builder

6923 – Back C

October 1, 2019October 25, 2021 Master Builder

4726: Quidditch Practice

February 27, 2023February 27, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Castle Castle Sets Dragon Knights Medium Builds Official Sets

6048: Majisto’s Magical Workshop

October 14, 2021October 14, 2021 Master Builder

Year Released: 1993BricklinkInstructions

Classic Town Official Sets Small Builds Town Town Sets Traffic

6509: Red Devil Racer

October 12, 2021October 12, 2021 Master Builder

Classic Space Classic Space Sets Different Box Versions Different Set Numbers Jens Nygaard Knudsen LL Link Medium Builds Official Sets Space

924 (487): Space Cruiser

January 25, 2022October 17, 2024 Master Builder

ABCs Official Sets Small Builds UFO UFO Sets

6836: V-Wing Fighter

October 24, 2019March 22, 2025 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6805: Astro Dasher

December 10, 2025December 10, 2025 Master Builder

ABCs Aquanauts Aquazone Aquazone Sets Medium Builds Official Sets

6175: Crystal Explorer Sub

January 20, 2022March 22, 2025 Master Builder

Futron Sets Futuron Medium Builds Official Sets

6893: Orion II Hyperspace

September 25, 2019September 28, 2019 Master Builder

Classic Town Fire Official Sets Small Builds Town Town Sets

6531: Flame Chaser

November 7, 2022November 7, 2022 Master Builder

Airport Bonus/Value Packs Castle Castle Sets Classic Town Forestmen Futron Sets Futuron Official Sets Small Builds Space Town

1974: Legoland Triple Pack

September 7, 2023September 7, 2023 Master Builder

Box Story Fabuland Fabuland Sets Medium Builds Official Sets

132: Cottage

March 1, 2023April 3, 2024 Master Builder

ABCs Large Builds Launch Command Official Sets Town Town Sets

6614: Launch Evac 1

June 30, 2023February 22, 2025 Master Builder

Extra Large Builds Official Sets Technic Technic Sets

8860: Car Chassis (Auto Chassis)

January 2, 2024January 2, 2024 Master Builder

ABCs Black Falcons Castle Castle Sets Large Builds Official Sets

6062: Battering Ram

October 11, 2021July 31, 2023 Master Builder

Castle Castle Sets Lion Knights Official Sets Small Builds

6010: Supply Wagon

July 13, 2021July 13, 2021 Master Builder

ABCs Exploriens Exploriens Sets Official Sets Small Builds Space

6854: Alien Fossilizer

July 15, 2022March 22, 2025 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6808: Galaxy Trekkor

January 21, 2021January 21, 2021 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

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.