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
- 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 Castle Castle Alternate Builds Dragon Knights Instructions Added Medium Alt Build Medium Builds

6043 – Back D

November 20, 2023November 21, 2023 Master Builder 4082 Views

From: 6043: Dragon Defender
Name: Incendiary Siege Tower ¹
Instructions: View PDF

Contributions

Name and PDF submitted on November 14, 2023 by: Silent Knight

← 6043 – Back C
1968 – Back A →

You May Also Like

6465 – Back B

March 3, 2025March 3, 2025 Master Builder

6503 – Back B

July 9, 2022July 9, 2022 Master Builder

6928 – Back A

January 12, 2021January 12, 2021 Master Builder

1484 – Back C

December 28, 2021December 28, 2021 Master Builder

6850 – Back A

September 24, 2019March 14, 2025 Master Builder

6341 – Back A

August 31, 2022September 17, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

Alpha Team Alpha Team Sets Medium Builds Mission Deep Sea Official Sets

4789: AT Aquatic Mech

February 12, 2024February 21, 2024 Master Builder

Year Released: 2002BricklinkInstructions

Basic Extra Large Builds Official Sets Universal Building Set

725: Basic Building Set

July 22, 2024July 22, 2024 Master Builder

Classic Space Classic Space Sets Different Box Versions Different Set Numbers Jens Nygaard Knudsen LL Link Medium Builds Official Sets Space

924 (487): Space Cruiser

January 25, 2022October 17, 2024 Master Builder

Classic Town Large Builds Official Sets Police Town Town Sets

6545: Search N’ Rescue

June 2, 2022June 2, 2022 Master Builder

Medium Builds Official Sets Technic Technic Sets

8024: Universal Set

October 20, 2019August 28, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

6845: Cosmic Charger

January 14, 2025January 14, 2025 Master Builder

Official Sets Small Builds Studio Sets Studios

1380: Werewolf Ambush

December 16, 2025December 16, 2025 Master Builder

Classic Town Construction Official Sets Town Town Sets Very Small Builds

6532: Diesel Dumper

November 19, 2020November 19, 2020 Master Builder

ABCs Box Plus Classic Town Medium Builds Official Sets Playscape/Play Stage Box Race Town Town Sets

1821: Rally Racers

February 10, 2025March 22, 2025 Master Builder

Castle Castle Sets Official Sets Royal Knights Very Small Builds

1752: Boat with Armor

April 10, 2023April 10, 2023 Master Builder

Extra Large Builds Model Team Model Team Sets Official Sets

5550: Custom Rally Van

February 9, 2026March 4, 2026 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

891: Two-Man Scooter

March 15, 2024March 15, 2024 Master Builder

ABCs Blacktron Blacktron Sets Bonus/Value Pack Sets LL Link Official Sets Very Small Builds

1875: Meteor Monitor

July 14, 2021January 22, 2026 Master Builder

Aquaraiders I Aquazone Aquazone Sets Large Builds Official Sets

2161: Aqua Dozer

January 8, 2020April 4, 2020 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

Castle Castle Sets Dark Forest Official Sets Small Builds

6024: Bandit Ambush

April 16, 2021April 16, 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
BATMAN
Bionicle
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.