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 – Bottom

January 22, 2021March 14, 2025 Master Builder 5399 Views

From: 1843: Space / Castle Value Pack
Name: Space / Castle Flying Rocking Horse ¹
Instructions: View PDF | Download .io File

Contributions

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

← 1843 – Side R
6345: Aerial Acrobats →

You May Also Like

3676 – Back B

March 1, 2025March 1, 2025 Master Builder

6755 – Back A

August 31, 2024September 6, 2024 Master Builder

6986 – Back D

April 21, 2023May 31, 2023 Master Builder

6043 – Back C

November 20, 2023November 21, 2023 Master Builder

4940 – Back B

April 4, 2020April 4, 2020 Master Builder

379: Bus Station

April 10, 2021May 31, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Episode IV/V/VI Large Builds Official Sets Star Wars Star Wars Sets

6212: X-wing Fighter

February 1, 2024February 1, 2024 Master Builder

Year Released: 2006BricklinkInstructions NONE 🙁

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

1616: Space Combi-Pack

September 6, 2023September 6, 2023 Master Builder

ABCs Jørn Thomsen M:Tron M:Tron Sets Official Sets Small Builds Space

6896: Celestial Forager

January 26, 2022July 31, 2023 Master Builder

Classic Space Classic Space Sets Jens Nygaard Knudsen Medium Builds Official Sets Space

926 (493): Space Command Center

October 22, 2019July 31, 2023 Master Builder

Black Knights Castle Castle Sets Official Sets Small Builds

6018: Battle Dragon

October 5, 2019April 4, 2020 Master Builder

Classic Town Medium Builds Official Sets Race Town Town Sets

6335: Indy Transport

November 29, 2023November 29, 2023 Master Builder

ABCs Aquanauts Aquazone Aquazone Sets Box Plus Official Sets Playscape/Play Stage Box Small Builds

1728 (6145): Crystal Crawler {with Aqua Playscape}

August 1, 2023March 22, 2025 Master Builder

Box Plus Different Box Versions Medium Builds Official Sets Playscape/Play Stage Box Time Cruisers Time Cruisers Sets

1853: Navigator

March 18, 2025March 20, 2025 Master Builder

Classic Town Official Sets Race Town Town Sets Very Small Builds

3056: Go-Kart

July 26, 2020July 26, 2020 Master Builder

Official Sets Space Port Town Very Small Builds

3066 (Kabaya: Town Space Port 1): Cosmos Glider

February 28, 2025February 28, 2025 Master Builder

Castle Castle Sets Knights Kingdom II Large Builds Official Sets

8876: Scorpion Prison Cave

January 20, 2026January 20, 2026 Master Builder

Building Set with People Building Set with People Sets Official Sets Small Builds

194: Family

October 4, 2019October 6, 2019 Master Builder

Duplicate Set Number Official Sets UFO UFO Sets Very Small Builds

6901-2: Space Plane

December 16, 2025December 16, 2025 Master Builder

Airport Classic Town Large Builds Official Sets Town Town Sets

1687: Midnight Transport

January 25, 2022January 25, 2022 Master Builder

Aquashark Aquazone Aquazone Sets Official Sets Small Builds

6155: Deep Sea Predator

May 10, 2022May 10, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6804: Surface Rover

September 25, 2019September 28, 2019 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.