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

Alternate Builds Castle Castle Alternate Builds Extra Large Builds

375-2 – Back A

November 8, 2019September 5, 2025 Master Builder 3197 Views

From: 375-2 (6075-2): Castle
Name: TBD
Submitted by: USER
Instructions

← 375-2 (6075-2): Castle
375-2 – Back B →

You May Also Like

6872 – Back C

October 19, 2019October 25, 2021 Master Builder

6392 – Back E

June 28, 2022June 28, 2022 Master Builder

6378 – Back E

February 26, 2023February 26, 2023 Master Builder

6542 – Back A

October 5, 2023October 10, 2023 Master Builder

6135 – Back A

March 21, 2023May 19, 2023 Master Builder

6351 – Back C

July 14, 2021July 14, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Space Classic Space Sets Official Sets Small Builds Space

1526: Unknown (Space Radar Buggy)

August 20, 2025August 29, 2025 Master Builder

Year Released: Not ReleasedInstructions: View PDF | Download .io File Improved Instructions: View PDF | Download .io File BricklinkBrickset: 1526: the classic space set that never

Official Sets Small Builds Town Town Sets

1665: Duel FX Racers

April 30, 2024April 30, 2024 Master Builder

Medium Builds Official Sets Town Town Sets

6381: Motor Speedway

October 5, 2019February 19, 2023 Master Builder

Episode IV/V/VI Extra Large Builds Official Sets Star Wars Star Wars Sets

6209: Slave I (2nd edition)

February 1, 2024February 1, 2024 Master Builder

Exo-Force Medium Builds Official Sets

7704: Sonic Phantom

April 28, 2023April 28, 2023 Master Builder

Aquaraiders I Aquazone Aquazone Sets Large Builds Official Sets

2162: Hydro Reef Wrecker

July 18, 2022July 18, 2022 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6645: Street Sweeper

November 20, 2020November 20, 2020 Master Builder

Large Builds Official Sets Race Town Town Sets

6713: Grip-n-Go Challenge

February 10, 2025February 10, 2025 Master Builder

Alpha Team Alpha Team Sets Medium Builds Mission Deep Sea Official Sets

4793: Ogel Sub Shark

February 21, 2024February 21, 2024 Master Builder

Castle Castle Sets Lion Knights Official Sets Small Builds

6040: Blacksmith Shop

October 8, 2023October 8, 2023 Master Builder

Airport Medium Builds Official Sets Town Town Sets World City

4032: Passenger Plane

December 29, 2021December 29, 2021 Master Builder

Classic Town Large Builds Official Sets Police Town Town Sets

6384: Police Station

December 28, 2021December 28, 2021 Master Builder

Aquashark Aquazone Aquazone Sets Large Builds Official Sets

6190: Shark’s Crystal Cave

July 13, 2021January 20, 2022 Master Builder

Official Sets Race Town Town Sets Very Small Builds

6609: Race Car

February 12, 2024February 12, 2024 Master Builder

Insectoids Insectoids Sets Large Builds Official Sets

6919: Planetary Prowler

November 9, 2019November 9, 2019 Master Builder

Extra Large Builds Official Sets Technic Technic Sets

8860: Car Chassis (Auto Chassis)

January 2, 2024January 2, 2024 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 © 2025 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.