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 Classic Town Harbor Instructions Added Medium Alt Build Medium Builds Town Town Alternate Builds

6541 – Back D

February 5, 2023February 12, 2023 Master Builder 3592 Views

From: 6541: Intercoastal Seaport
Name: Engine Swap Bay ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted on February 5, 2023 by: Valdis

← 6899 – Back C
6541 – Back F →

You May Also Like

Invention Adventure Activity Book – Page 25-26

April 28, 2024May 10, 2024 Master Builder

6047 – Back A

November 18, 2021November 18, 2021 Master Builder

6861 – Back D

July 9, 2022May 17, 2023 Master Builder

1785 – Back B

April 8, 2022May 10, 2022 Master Builder

1484 – Back A

December 28, 2021December 28, 2021 Master Builder

6581 – Back A

April 27, 2023May 19, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

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

Year Released: 1996BricklinkInstructionsContains Sets: 1843-2: {Spyrius Unknown} and 1843-3: {Royal Knights Unknown}

ABCs Insectoids Insectoids Sets Official Sets Space Very Small Builds

6817: Beta Buzzer

June 1, 2022March 22, 2025 Master Builder

Drome Racers Official Sets Racers Small Builds

4594: Maverick Sprinter & Hot Arrow

February 21, 2025February 21, 2025 Master Builder

Aquazone Aquazone Sets Box Plus Large Builds Official Sets Playscape/Play Stage Box Stingrays

6109: Sea Creeper {with Giant Ray}

January 19, 2022April 1, 2025 Master Builder

Extra Large Builds Official Sets Res-Q Town Town Sets

6479: Emergency Response Center

April 16, 2021January 20, 2022 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

Exo-Force Official Sets Small Builds

7708: Uplink

August 11, 2023August 11, 2023 Master Builder

Chamber of Secrets Harry Potter Harry Potter Sets Medium Builds Official Sets

4733: The Dueling Club

March 3, 2023March 3, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Space Supplemental

305: Two Crater Plates

March 6, 2026March 6, 2026 Master Builder

Alpha Team Alpha Team Sets Large Builds Official Sets

6776: Ogel Control Center

February 12, 2024February 12, 2024 Master Builder

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

1974-4: Star Quest

September 7, 2023September 8, 2023 Master Builder

Imperial Soldiers Official Sets Pirates Pirates I Pirates Sets Small Builds

6265: Sabre Island

May 28, 2024May 28, 2024 Master Builder

ABCs Exo-Force Medium Builds Official Sets

7703: Fire Vulture

August 4, 2023February 12, 2025 Master Builder

Cowboys Official Sets Very Small Builds Western Western Sets

6790: Bandit’s Wheelgun

October 10, 2023October 10, 2023 Master Builder

Official Sets Outback Small Builds Town Town Sets

6487: Mountain Rescue

July 25, 2022July 25, 2022 Master Builder

Official Sets Town Town Jr Town Sets Traffic Very Small Builds

6422: Telephone Repair

July 28, 2020July 28, 2020 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.