Skip to content

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
- 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 Alt Build Extra Large Builds Instructions Added

375-2 – Inside B

December 16, 2022September 5, 2025 Master Builder 5387 Views

From: 375-2 (6075-2): Castle
Name: TBD
Instructions: View PDF ¹

Contributions

PDF credit: Michael Tax

← 6358 – Back D
6074 – Back C →

You May Also Like

6805 – Back C

December 10, 2025December 10, 2025 Master Builder

924 – Back C

August 24, 2024August 27, 2024 Master Builder

1416 – Back A

February 25, 2025February 25, 2025 Master Builder

381 – Back D

July 27, 2023July 27, 2023 Master Builder

6545 – Back D

June 2, 2022June 3, 2022 Master Builder

6513 – Back B

May 18, 2022May 23, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Town Official Sets Recreation Town Town Sets Very Small Builds

6534: Beach Bandit

July 8, 2022July 8, 2022 Master Builder

Year Released: 1992BricklinkInstructions

Box Plus Castle Castle Sets Fright Knights Medium Builds Official Sets Playscape/Play Stage Box

6099: Traitor Transport {with Dragon Cave}

April 1, 2025April 1, 2025 Master Builder

LEGOLAND Medium Builds Official Sets Space

358: Rocket Base

March 5, 2026March 5, 2026 Master Builder

Box Story Imperial Guards Large Builds Official Sets Pirates Pirates I Pirates Sets

6271: Imperial Flagship

January 6, 2022February 20, 2025 Master Builder

Chamber of Secrets Harry Potter Harry Potter Sets Official Sets Small Builds

4735: Slytherin

February 27, 2023February 27, 2023 Master Builder

9V Medium Builds Official Sets Town Train Train Sets

4532: Manual Level Crossing

May 22, 2026May 22, 2026 Master Builder

Holiday and Event Holiday and Event Sets Official Sets Small Builds

1978: Build-A-Santa Polybag

April 28, 2023April 28, 2023 Master Builder

Classic Town Official Sets Police Town Town Sets Very Small Builds

6506: Precinct Cruiser

July 12, 2021July 12, 2021 Master Builder

Box Story Imperial Armada Large Builds Official Sets Pirates Pirates I Pirates Sets

6280: Armada Flagship

July 13, 2021February 20, 2025 Master Builder

Aquashark Aquazone Aquazone Sets Official Sets Very Small Builds

6135: Spy Shark

March 21, 2023March 21, 2023 Master Builder

Ice Planet 2002 Ice Planet 2002 Sets Official Sets Small Builds Space

6879: Blizzard Baron

November 20, 2019July 29, 2023 Master Builder

Classic Town Official Sets Town Town Sets Traffic Very Small Builds

6613: Telephone Booth

November 6, 2024November 6, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6805: Astro Dasher

December 10, 2025December 10, 2025 Master Builder

Bjarne Tveskov Futron Sets Futuron Official Sets Space Very Small Builds

6830: Space Patroller

April 8, 2020July 29, 2023 Master Builder

9V Medium Builds Official Sets Town Train Train Sets

4539: Manual Level Crossing

May 22, 2026May 22, 2026 Master Builder

Cowboys Official Sets Very Small Builds Western Western Sets

6712: Sheriff’s Showdown

October 10, 2023October 10, 2023 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
BATMAN
Bionicle
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.