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

Castle Castle Sets Crusaders Daniel August Krentz Extra Large Builds Official Sets

6081: King’s Mountain Fortress

June 30, 2022July 29, 2023 Master Builder 7868 Views

Year Released: 1990
Designer: Daniel August Krentz
Bricklink
Instructions

Back A

Back A

← 6049 – Bottom
6081 – Back A →

You May Also Like

5580: Highway Rig

February 9, 2026February 9, 2026 Master Builder

7259: ARC-170 Starfighter

March 1, 2023March 1, 2023 Master Builder

6059 – Back C

July 13, 2021July 13, 2021 Master Builder

6085 – Back A

July 13, 2021October 28, 2021 Master Builder

1817: Sea Plane with Hut and Boat

January 12, 2022January 12, 2022 Master Builder

6368: Jet Airliner

January 21, 2021January 21, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

Large Builds Official Sets Technic Technic Sets

8001: Battle Droid

September 1, 2023September 1, 2023 Master Builder

Year Released: 2000BricklinkInstructions

Classic Space Classic Space Sets Official Sets Very Small Builds

6803: Space Patrol

September 21, 2019February 15, 2026 Master Builder

Classic Town Official Sets Supplemental Town

6347: Monorail Accessory Track

August 27, 2023August 27, 2023 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6693: Recycle Truck

May 10, 2022May 10, 2022 Master Builder

Episode III Official Sets Small Builds Star Wars Star Wars Sets

7255: General Grievous Chase

March 2, 2023March 2, 2023 Master Builder

Classic Town Official Sets Police Town Town Sets Very Small Builds

6506: Precinct Cruiser

July 12, 2021July 12, 2021 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

6845: Cosmic Charger

January 14, 2025January 14, 2025 Master Builder

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

6074: Black Falcon’s Fortress

October 14, 2021July 29, 2023 Master Builder

Airport Classic Town Official Sets Town Town Sets Very Small Builds

1630: Helicopter

April 8, 2025April 8, 2025 Master Builder

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

7180: B-wing at Rebel Control Center

August 17, 2023August 17, 2023 Master Builder

Medium Builds Official Sets Technic Technic Sets

8812: Aero Hawk II

January 22, 2026January 22, 2026 Master Builder

Bonus/Value Packs Castle Castle Sets Official Sets Royal Knights Small Builds Space Spyrius Spyrius Sets

1843: Space/Castle Value Pack

January 21, 2021September 13, 2023 Master Builder

Classic Town Official Sets Recreation Small Builds Town Town Sets

6665: River Runners

June 1, 2022June 1, 2022 Master Builder

ABCs Box Story Large Builds Official Sets Robo Force Robo Force Sets Space

2154: Robo Master

June 14, 2023February 11, 2025 Master Builder

Dino Attack Official Sets Small Builds

7474: Urban Avenger vs. Raptor

April 27, 2023April 27, 2023 Master Builder

Indians Official Sets Very Small Builds Western Western Sets

2846: Indian Kayak

October 10, 2023October 10, 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
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.