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

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 5939 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

6820 – Back B

January 12, 2021January 12, 2021 Master Builder

6552 – Back B

May 7, 2024May 11, 2024 Master Builder

6694 – Back D

July 15, 2022July 20, 2022 Master Builder

6988: Alpha Centauri Outpost

October 24, 2019October 24, 2019 Master Builder

6381 – Back A

February 15, 2023February 19, 2023 Master Builder

6850 – Back B

September 24, 2019March 14, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

ABCs Aquanauts Aquazone Aquazone Sets Medium Builds Official Sets

6175: Crystal Explorer Sub

January 20, 2022March 22, 2025 Master Builder

Year Released: 1995BricklinkInstructions *Alternate Build Connection: Aqua 5

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

6672: Safari Off-Road Vehicle

January 28, 2022January 28, 2022 Master Builder

ABCs Box Marketing Blurb Jørn Thomsen Large Builds Official Sets Space Space Police II Space Police II Sets

6984: Galactic Mediator

March 18, 2022June 23, 2025 Master Builder

Educational & Dacta Extra Large Builds Futron Sets Futuron Official Sets Space

9355: Dacta Space Theme Set

March 2, 2023May 18, 2023 Master Builder

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

1621: Lunar MPV Vehicle

September 6, 2023September 7, 2023 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6232: Skeleton Crew

July 13, 2021July 13, 2021 Master Builder

Medium Builds Official Sets Super Model Technic Technic Alternate Builds Technic Sets

120270: The Great Technic Racer

March 8, 2025March 8, 2025 Master Builder

Large Builds M:Tron M:Tron Sets Official Sets Space

6956: Stellar Recon Voyager

September 23, 2019November 19, 2020 Master Builder

Futron Sets Futuron Medium Builds Official Sets

6893: Orion II Hyperspace

September 25, 2019September 28, 2019 Master Builder

Castle Castle Sets Knights Kingdom II Large Builds Official Sets

8876: Scorpion Prison Cave

January 20, 2026January 20, 2026 Master Builder

Basic Large Builds Official Sets Universal Building Set

720: Basic Building Set

February 8, 2024February 9, 2024 Master Builder

Building Classic Town Large Builds Official Sets Town Town Sets

6379: Riding Stable

February 8, 2022February 8, 2022 Master Builder

Medium Builds Official Sets Paradisa Town Town Sets

6414: Dolphin Point

January 14, 2021December 17, 2025 Master Builder

Classic Town Official Sets Police Small Builds Town Town Sets

1895: Sky Patrol

June 1, 2022June 1, 2022 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6699: Cycle Fix-It Shop

October 28, 2025October 28, 2025 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6524: Blizzard Blazer

June 28, 2022June 28, 2022 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.