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

Black Falcons Castle Castle Sets Daniel August Krentz Large Builds Official Sets

6074: Black Falcon’s Fortress

October 14, 2021July 29, 2023 Master Builder 11236 Views

Year Released: 1986
Designer: Daniel August Krentz
Bricklink
Instructions

Back A

Back A

← 6827 – Back C
6074 – Back A →

You May Also Like

6980 – Inside A

July 21, 2021July 21, 2021 Master Builder

6332 – Back C

June 5, 2024June 5, 2024 Master Builder

6076: Dark Dragon’s Den

December 27, 2021December 27, 2021 Master Builder

770: Rescue Set

September 15, 2022February 14, 2024 Master Builder

6251: Pirate Mini Figures (Sea Mates)

April 9, 2020April 9, 2020 Master Builder

1821: Rally Racers

February 10, 2025March 22, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Town Official Sets Town Town Sets Traffic Very Small Builds

6613: Telephone Booth

November 6, 2024November 6, 2024 Master Builder

Year Released: 1986BricklinkInstructions

Box Story Ice Planet 2002 Ice Planet 2002 Sets Jørn Thomsen Large Builds Official Sets Space

6983: Ice Station Odyssey

November 9, 2019March 20, 2025 Master Builder

Classic Town Medium Builds Official Sets Police Town Town Sets

6344: Jet Speed Justice

October 8, 2024October 8, 2024 Master Builder

ABCs Aquanauts Aquazone Aquazone Sets Box Plus Official Sets Playscape/Play Stage Box Small Builds

1728 (6145): Crystal Crawler {with Aqua Playscape}

August 1, 2023March 22, 2025 Master Builder

Classic Town LL Link Official Sets Race Small Builds Town Town Sets

6648: Mag Racer

November 19, 2020July 11, 2024 Master Builder

Large Builds Official Sets Technic Technic Sets

951: Bulldozer

December 17, 2025December 17, 2025 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6667: Pothole Patcher

November 19, 2020November 19, 2020 Master Builder

Imperial Soldiers Official Sets Pirates Pirates I Pirates Sets Small Builds

6259: Broadside’s Brig

April 16, 2024April 16, 2024 Master Builder

ABCs Aquanauts Aquazone Aquazone Sets Extra Large Builds Jørn Thomsen Official Sets

6195: Neptune Discovery Lab (Aqua Dome 7)

January 20, 2022February 11, 2025 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

1580: Lunar Scout

July 12, 2021July 12, 2021 Master Builder

Airport Classic Town Official Sets Small Builds Town Town Sets

6687: Turbo Prop I

December 27, 2021December 27, 2021 Master Builder

Episode I Medium Builds Official Sets Star Wars Star Wars Sets

7151: Sith Infiltrator

September 1, 2023September 1, 2023 Master Builder

Airport Classic Town Extra Large Builds Official Sets Town Town Sets

6396: International Jetport

July 14, 2021July 14, 2021 Master Builder

Large Builds Official Sets Technic Technic Sets

8000: Pit Droid

September 11, 2023September 11, 2023 Master Builder

Extra Large Builds Harry Potter Harry Potter Sets Official Sets Sorcerer's Stone

4709: Hogwarts Castle

April 16, 2021July 13, 2021 Master Builder

Castle Castle Sets Classic Castle Official Sets Very Small Builds

6077: Knight’s Procession

July 13, 2021July 13, 2021 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.