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 Instructions Added Large Alt Build Large Builds Pirates Pirates Alternate Builds Pirates I

6273 – Back A

July 4, 2024July 6, 2024 Master Builder 4494 Views

From: 6273: Rock Island Refuge
Name: Rock Island Prison ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted on June 30, 2024 by: Valdis

← 6273: Rock Island Refuge
4720: Knockturn Alley →

You May Also Like

6927 – Back B

October 22, 2019October 22, 2019 Master Builder

7260 – Back A

March 1, 2023March 3, 2023 Master Builder

4709 – Back C

June 12, 2024June 17, 2024 Master Builder

735 – Front B

September 15, 2022September 15, 2022 Master Builder

2551 – Back C

February 27, 2023February 27, 2023 Master Builder

1966 – Back F

May 16, 2025May 16, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Town Official Sets Small Builds Town Town Sets Traffic

6590: Vacation Camper

July 8, 2022July 8, 2022 Master Builder

Year Released: 1988BricklinkInstructions

Goblet of Fire Harry Potter Harry Potter Sets Large Builds Official Sets

4767: Harry and the Hungarian Horntail

May 16, 2023May 16, 2023 Master Builder

Classic Town Large Builds Official Sets Race Town Town Sets

6337: Fast Track Finish

December 4, 2023December 4, 2023 Master Builder

Medium Builds Official Sets Technic Technic Sets

8812: Aero Hawk II

January 22, 2026January 22, 2026 Master Builder

Futron Sets Futuron Official Sets Small Builds Space

6885: Saturn Base Main Team (Crater Crawler)

December 28, 2021December 28, 2021 Master Builder

Alpha Team Alpha Team Sets Mission Deep Sea Official Sets Very Small Builds

Kabaya: Alpha Team 2

September 9, 2024September 9, 2024 Master Builder

Classic Town Hospital Medium Builds Official Sets Town Town Sets

6356: Med-Star Rescue Plane

March 16, 2022March 16, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

886: Space Buggy

January 25, 2024January 25, 2024 Master Builder

Drome Racers Official Sets Racers Very Small Builds

4583: Maverick Storm

October 22, 2021February 21, 2025 Master Builder

Classic Town Official Sets Police Town Town Sets Very Small Builds

6623: Police Car

October 13, 2021October 13, 2021 Master Builder

Classic Town Official Sets Police Small Builds Town Town Sets

6664: Chopper Cops

May 3, 2020May 3, 2020 Master Builder

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

6081: King’s Mountain Fortress

June 30, 2022July 29, 2023 Master Builder

Classic Space Classic Space Sets Large Builds Official Sets

6972: Polaris I Space Lab

September 12, 2019November 21, 2023 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6509: Red Devil Racer

October 12, 2021October 12, 2021 Master Builder

9V Extra Large Builds Official Sets Town Train Train Sets

4565: Freight and Crane Railway

January 5, 2026January 5, 2026 Master Builder

Official Sets Space Port Town Town Sets Very Small Builds

6458: Satellite with Astronaut

December 17, 2025December 17, 2025 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.