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 Castle Castle Alternate Builds Extra Large Alt Build Extra Large Builds Instructions Added 

375-2 – Inside B

December 16, 2022September 5, 2025 Master Builder 5993 Views

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

Contributions

  1. PDF credit: Michael Tax
  • ← 6358 – Back D
  • 6074 – Back C →

You May Also Like

6590 – Back E

January 7, 2023May 17, 2023 Master Builder

6512 – Back C

June 6, 2022June 6, 2022 Master Builder

6872 – Back C

October 19, 2019April 21, 2026 Master Builder

6390 – Back E

February 10, 2023February 10, 2023 Master Builder

4563 – Back A

June 26, 2026July 6, 2026 Master Builder

6530 – Back C

April 4, 2020April 19, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

4558: Metroliner
9V Extra Large Builds Official Sets Town Train Train Sets 

4558: Metroliner

August 11, 2026August 11, 2026 Master Builder

Year Released: 1991BricklinkInstructions

4555: Cargo Station
9V Large Builds Official Sets Town Train Train Sets 

4555: Cargo Station

January 2, 2024January 2, 2024 Master Builder
6977: Arachnoid Star Base
Insectoids Insectoids Sets Large Builds Official Sets 

6977: Arachnoid Star Base

November 9, 2019November 9, 2019 Master Builder
3676: Catherine Cat’s Fun Park
Box Story Fabuland Fabuland Sets Official Sets Small Builds 

3676: Catherine Cat’s Fun Park

March 1, 2025March 1, 2025 Master Builder
6823: Surface Transport
Classic Space Classic Space Sets Official Sets Very Small Builds 

6823: Surface Transport

September 30, 2019September 30, 2019 Master Builder
1702: Fire Fighter 4 x 4
Bonus/Value Pack Sets Classic Town Fire Ice Planet 2002 Ice Planet 2002 Sets Official Sets Small Builds Space Town 

1702: Fire Fighter 4 x 4

September 6, 2023September 7, 2023 Master Builder
8942: Jetrax T6
Battle Vehicles BIONICLE BIONICLE Sets Extra Large Builds Official Sets 

8942: Jetrax T6

March 4, 2026March 4, 2026 Master Builder
6073: Knight’s Castle
Black Falcons Castle Castle Sets Daniel August Krentz Large Builds Official Sets 

6073: Knight’s Castle

October 23, 2019July 29, 2023 Master Builder
6548: Octan Gas Station
Gas Station Medium Builds Official Sets Town Town Jr Town Sets 

6548: Octan Gas Station

October 12, 2021October 12, 2021 Master Builder
4482: AT-TE
Episode II Extra Large Builds Official Sets Star Wars Star Wars Sets 

4482: AT-TE

April 9, 2020April 9, 2020 Master Builder
6895: Spy-Trak I
Jørn Thomsen Medium Builds Official Sets Space Space Police I Space Police I Sets 

6895: Spy-Trak I

April 8, 2020September 12, 2024 Master Builder
6010: Supply Wagon
Castle Castle Sets Lion Knights Official Sets Small Builds 

6010: Supply Wagon

July 13, 2021July 13, 2021 Master Builder
725-3: Town Plan
Large Builds Official Sets Samsonite Samsonite Sets Town Town Sets 

725-3: Town Plan

October 9, 2024October 9, 2024 Master Builder
7144: Slave I
Episode IV/V/VI Medium Builds Official Sets Star Wars Star Wars Sets 

7144: Slave I

October 28, 2021October 28, 2021 Master Builder
6465: Space Port Jet
Official Sets Small Builds Space Port Town Town Sets 

6465: Space Port Jet

March 3, 2025March 3, 2025 Master Builder
6905: Bi-Wing Blaster
Insectoids Insectoids Sets Official Sets Small Builds 

6905: Bi-Wing Blaster

February 22, 2023February 22, 2023 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.