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
- Train
- 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

6086 – Inside A

October 11, 2021October 28, 2021 Master Builder 8296 Views

From: 6086: Black Knight’s Castle
Name: Black Knight’s Stronghold ¹
Instructions: View PDF

Contributions

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

← 6086: Black Knight’s Castle
6086 – Inside B →

You May Also Like

6040 – Back B

August 8, 2024September 25, 2024 Master Builder

6837 – Back A

April 2, 2020April 2, 2020 Master Builder

725: Basic Building Set

July 22, 2024July 22, 2024 Master Builder

6941 – Inside A

March 8, 2026October 26, 2026 Master Builder

6563 – Back A

July 20, 2022July 20, 2022 Master Builder

710 – Back C

June 24, 2025June 26, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

Official Sets Town Town Sets Very Small Builds

6546: Slick Racer

May 23, 2022May 23, 2022 Master Builder

Year Released: 1996BricklinkInstructions

ABCs Jørn Thomsen M:Tron M:Tron Sets Official Sets Small Builds Space

6896: Celestial Forager

January 26, 2022July 31, 2023 Master Builder

Insectoids Insectoids Sets Official Sets Space Very Small Builds

6903: Bug Blaster

October 4, 2024October 4, 2024 Master Builder

Box Story Fabuland Fabuland Sets Medium Builds Official Sets

132: Cottage

March 1, 2023April 3, 2024 Master Builder

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

7301 (1413, 7309, Kabaya: Life On Mars 4): Rover

February 24, 2025February 25, 2025 Master Builder

Batman I BATMAN™ BATMAN™ Sets Large Builds Official Sets

7781: The Batmobile: Two-Face’s Escape

March 27, 2026March 27, 2026 Master Builder

Episode II Extra Large Builds Official Sets Star Wars Star Wars Sets

4482: AT-TE

April 9, 2020April 9, 2020 Master Builder

Classic Town Medium Builds Official Sets Police Town Town Sets

6354: Pursuit Squad

February 9, 2022February 9, 2022 Master Builder

Cargo Classic Town Extra Large Builds Official Sets Town Town Sets

6391: Cargo Center

March 13, 2024March 13, 2024 Master Builder

Adventurers Adventurers Sets Desert Large Builds Official Sets

5958: Mummy’s Tomb

October 27, 2019July 14, 2022 Master Builder

Basic Official Sets Small Builds Universal Building Set

385-2: Build-N-Store Chest

September 8, 2025September 8, 2025 Master Builder

Bonus/Value Pack Sets Futron Sets Futuron Jørn Thomsen Official Sets Small Builds Space

1621: Lunar MPV Vehicle

September 6, 2023September 7, 2023 Master Builder

Castle Castle Sets Official Sets Royal Knights Small Builds

6036: Skeleton Surprise

February 28, 2023February 28, 2023 Master Builder

Drome Racers Official Sets Racers Very Small Builds

4583: Maverick Storm

October 22, 2021February 21, 2025 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6826: Crater Crawler

September 26, 2019October 22, 2019 Master Builder

Dino Attack Large Builds Official Sets

7475: Fire Hammer vs. Mutant Lizards

April 27, 2023April 27, 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
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.