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
    • 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 Black Knights Castle Castle Alternate Builds Extra Large Alt Build Extra Large Builds Instructions Added 

6085 – Back C

July 13, 2021October 28, 2021 Master Builder 6806 Views

From: 6085: Black Monarch’s Castle
Name: Black Knight’s River Crossing 1
Instructions: View PDF

Contributions

  1. Name and PDF submitted on September 24, 2021 by: Cor3y
  • ← 6085 – Back B
  • 6085 – Inside A →

You May Also Like

6836 – Back A

July 12, 2024July 13, 2024 Master Builder

7151 – Instructions 4

April 22, 2026April 22, 2026 Master Builder

6850 – Back A

September 24, 2019March 14, 2025 Master Builder

6932 – Back D

September 24, 2019January 10, 2022 Master Builder

6087 – Back B

April 19, 2023April 26, 2023 Master Builder

6395 – Back A

July 1, 2022July 1, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

4539: Manual Level Crossing
9V Medium Builds Official Sets Town Train Train Sets 

4539: Manual Level Crossing

May 22, 2026May 22, 2026 Master Builder

Year Released: 1991BricklinkInstructions

1381: Vampire’s Crypt
Medium Builds Official Sets Studio Sets Studios 

1381: Vampire’s Crypt

July 2, 2024July 2, 2024 Master Builder
7261: Clone Turbo Tank
Episode III Extra Large Builds Official Sets Star Wars Star Wars Sets 

7261: Clone Turbo Tank

March 1, 2023March 1, 2023 Master Builder
6854: Alien Fossilizer
ABCs Exploriens Exploriens Sets Official Sets Small Builds Space 

6854: Alien Fossilizer

July 15, 2022March 22, 2025 Master Builder
120270: The Great Technic Racer
Medium Builds Official Sets Super Model Technic Technic Alternate Builds Technic Sets 

120270: The Great Technic Racer

March 8, 2025March 8, 2025 Master Builder
7115: Gungan Patrol
Episode I Official Sets Small Builds Star Wars Star Wars Sets 

7115: Gungan Patrol

January 12, 2021April 22, 2026 Master Builder
550-2: Windmill
Building LEGOLAND Medium Builds Official Sets 

550-2: Windmill

March 3, 2026March 3, 2026 Master Builder
358: Rocket Base
LEGOLAND Medium Builds Official Sets Space 

358: Rocket Base

March 5, 2026March 5, 2026 Master Builder
6829: Radon Rover
ABCs Official Sets Small Builds Space UFO UFO Sets 

6829: Radon Rover

August 4, 2020March 22, 2025 Master Builder
6247: Bounty Boat
Imperial Guards Official Sets Pirates Pirates I Pirates Sets Very Small Builds 

6247: Bounty Boat

May 10, 2022May 10, 2022 Master Builder
6016: Knight’s Arsenal
Castle Castle Sets Lion Knights Official Sets Very Small Builds 

6016: Knight’s Arsenal

October 12, 2021October 12, 2021 Master Builder
6991: Monorail Transport Base
Extra Large Builds Jørn Thomsen Official Sets Space Unitron Unitron Sets 

6991: Monorail Transport Base

September 28, 2019July 29, 2023 Master Builder
6390: Main Street
Box Marketing Blurb Classic Town Extra Large Builds Official Sets Town Town Sets Traffic 

6390: Main Street

February 10, 2023April 3, 2024 Master Builder
1632: Motor Boat
Classic Town Harbor Official Sets Town Town Sets Very Small Builds Wrecker 

1632: Motor Boat

July 25, 2024July 25, 2024 Master Builder
6384: Police Station
Classic Town Large Builds Official Sets Police Town Town Sets 

6384: Police Station

December 28, 2021December 28, 2021 Master Builder
6893: Orion II Hyperspace
Futron Sets Futuron Medium Builds Official Sets 

6893: Orion II Hyperspace

September 25, 2019September 28, 2019 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
  • 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.