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

6085 – Inside B

July 13, 2021October 28, 2021 Master Builder 4526 Views

From: 6085: Black Monarch’s Castle
Name: Black Knight’s Siege Beast ¹
Instructions: View PDF

Contributions

Name and PDF submitted on September 24, 2021 by: Cor3y

← 6085 – Inside A
6090: Royal Knight’s Castle →

You May Also Like

1789 – Back B

July 18, 2020July 18, 2020 Master Builder

6077 – Back A

July 13, 2021July 13, 2021 Master Builder

535 – Side L

May 15, 2023August 1, 2023 Master Builder

5958 – Back B

October 28, 2019April 4, 2020 Master Builder

6345 – Back A

January 29, 2021September 15, 2022 Master Builder

725 – Back C

July 22, 2024July 22, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

Indians Jørn Thomsen Official Sets Small Builds Western Western Sets

6718: Raindance Ridge (Rain Dance Ridge)

August 4, 2020July 29, 2023 Master Builder

Year Released: 1997Designer: Jørn ThomsenBricklinkInstructions

Official Sets Race Town Town Sets Very Small Builds

6609: Race Car

February 12, 2024February 12, 2024 Master Builder

Belville Belville Sets Official Sets Playhouse Small Builds

5870: Pretty Playland

March 2, 2023March 2, 2023 Master Builder

Official Sets Rock Raiders Rock Raiders Sets Very Small Builds

4920: Rapid Rider

March 1, 2023March 1, 2023 Master Builder

Designer Sets Designer Sets Alternate Builds Designer Sets Set Medium Builds Official Sets

4883: Gear Grinders

August 2, 2021August 2, 2021 Master Builder

Official Sets Scala Scala Alternate Builds Scala Sets Small Builds

3152: Playroom for the Baby Thomas

July 10, 2024July 10, 2024 Master Builder

Building Classic Town Large Builds Official Sets Town Town Sets

6379: Riding Stable

February 8, 2022February 8, 2022 Master Builder

Classic Town Construction Official Sets Small Builds Town Town Sets

6662: Backhoe

July 8, 2022July 8, 2022 Master Builder

Basic Set Duplo Duplo Sets Official Sets Very Small Builds

2333: Animal

May 16, 2023May 16, 2023 Master Builder

ABCs Bjarne Tveskov Extra Large Builds Futron Sets Futuron Official Sets Space

6990: Futuron Monorail Transport System

August 30, 2020February 12, 2025 Master Builder

Extra Large Builds Official Sets Technic Technic Sets

8860: Car Chassis (Auto Chassis)

January 2, 2024January 2, 2024 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6234: Renegade’s Raft

May 23, 2022May 23, 2022 Master Builder

Life on Mars Life on Mars Sets Official Sets Very Small Builds

7302 (1416, Kabaya: Life On Mars 2): Worker Robot

February 25, 2025February 25, 2025 Master Builder

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

7166: Imperial Shuttle

April 16, 2021September 4, 2023 Master Builder

Basic Large Builds Official Sets Universal Building Set

720: Basic Building Set

February 8, 2024February 9, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6802: Space Probe

October 10, 2022October 10, 2022 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.