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

Bonus/Value Pack Alternate Builds Castle Castle Alternate Builds Instructions Added Official Sets Royal Knights Small Alt Build Small Builds Space Spyrius Spyrius Alternate Builds

1843 – Side R

January 22, 2021March 14, 2025 Master Builder 5400 Views

From: 1843: Space / Castle Value Pack
Name: Space / Castle Catapult and Tracking Station ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF, and .io file submitted on January 29, 2021 by: Mr.AstonishedRaccoon

← 1843 – Side L
1843 – Bottom →

You May Also Like

6854: Alien Fossilizer

July 15, 2022March 22, 2025 Master Builder

6712: Sheriff’s Showdown

October 10, 2023October 10, 2023 Master Builder

7134: A-wing Fighter

December 29, 2021December 29, 2021 Master Builder

6750 – Back A

July 9, 2022May 17, 2023 Master Builder

1593 – Back A

February 3, 2021March 18, 2024 Master Builder

6211 – Back A

February 9, 2025February 13, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Town Official Sets Police Town Town Sets Very Small Builds

600: Police Patrol

July 11, 2024July 11, 2024 Master Builder

Year Released: 1978BricklinkInstructions

Classic Space Classic Space Sets Official Sets Very Small Builds

6824: Space Dart I

September 30, 2019October 6, 2019 Master Builder

Aquazone Aquazone Sets Large Builds Official Sets Stingrays

6160: Sea Scorpion

October 29, 2019April 4, 2020 Master Builder

Black Knights Castle Castle Sets Official Sets Very Small Builds

6009: Black Knight

April 9, 2020April 9, 2020 Master Builder

Hospital LEGOLAND Medium Builds Official Sets

770: Rescue Set

September 15, 2022February 14, 2024 Master Builder

Classic Town Off-Road Official Sets Small Builds Town Town Sets

6659: TV Camera Crew

April 10, 2021April 10, 2021 Master Builder

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

4706: Forbidden Corridor

February 27, 2023February 27, 2023 Master Builder

Adventurers Adventurers Sets Box Story Official Sets Orient Expedition Small Builds

7411: Tygurah’s Roar

December 16, 2025December 16, 2025 Master Builder

Large Builds LEGOLAND Official Sets Space

565: Moon Landing

July 11, 2024July 11, 2024 Master Builder

Medium Builds Official Sets Time Cruisers Time Cruisers Sets

6492: Hypno Cruiser

December 29, 2021March 20, 2025 Master Builder

Life on Mars Life on Mars Sets Official Sets Very Small Builds

7303 (1415, Kabaya: Life On Mars 3): Jet Scooter

February 25, 2025February 25, 2025 Master Builder

Castle Castle Sets Dragon Knights Medium Builds Official Sets

6043: Dragon Defender

November 20, 2023November 20, 2023 Master Builder

9V Extra Large Builds Official Sets Town Train Train Sets

4563: Load N’ Haul Railroad

July 26, 2022July 26, 2022 Master Builder

Creator Expert Extra Large Builds Modular Buildings Collection Official Sets

10182: Café Corner

January 23, 2024January 23, 2024 Master Builder

Classic Space Classic Space Sets Large Builds Official Sets Space

6970: Beta-1 Command Base

January 20, 2021January 20, 2021 Master Builder

Harry Potter Harry Potter Sets Official Sets Prisoner of Azkaban Very Small Builds

4750: Draco’s Encounter with Buckbeak

May 16, 2023May 16, 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.