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
- Train
- Town
- Universal Building Set
- Western
- More Sets
- Misc
USEFUL LINKS
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Classic Space Classic Space Sets Official Sets Small Builds

6825: Cosmic Comet

September 12, 2019March 18, 2024 Master Builder 5955 Views

Year Released: 1985
Bricklink

Back A

Back A

6940: Alien Moon Stalker →

You May Also Like

2963 – Back A

January 30, 2024January 30, 2024 Master Builder

8675 – Back C

July 15, 2024August 28, 2024 Master Builder

6266 – Back B

December 27, 2021June 3, 2022 Master Builder

1380: Werewolf Ambush

December 16, 2025December 16, 2025 Master Builder

6041 – Back D

September 25, 2024September 25, 2024 Master Builder

6983: Ice Station Odyssey

November 9, 2019March 20, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Space Classic Space Sets Mads Rye Official Sets Small Builds

6882: Walking Astro Grappler

September 30, 2019April 2, 2025 Master Builder

Year Released: 1985Designer: Mads RyeBricklinkInstructions *Alternate Build Connection: 6876: Alienator, 6878: Sub Orbital Guardian

Aquashark Aquazone Aquazone Sets Large Builds Official Sets

6190: Shark’s Crystal Cave

July 13, 2021January 20, 2022 Master Builder

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

7128: Speeder Bikes

July 14, 2021July 14, 2021 Master Builder

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

6212: X-wing Fighter

February 1, 2024February 1, 2024 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6234: Renegade’s Raft

May 23, 2022May 23, 2022 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

Classic Space Classic Space Sets Large Builds Official Sets

6940: Alien Moon Stalker

September 12, 2019September 12, 2024 Master Builder

ABCs Castle Castle Sets Classic Castle Daniel August Krentz Different Set Numbers Duplicate Set Number Extra Large Builds Official Sets

375-2 (6075-2): Castle

November 8, 2019September 5, 2025 Master Builder

Classic Town Official Sets Police Small Builds Town Town Sets

6664: Chopper Cops

May 3, 2020May 3, 2020 Master Builder

Official Sets Small Builds Space UFO UFO Sets

6818: Cyborg Scout

July 18, 2022July 18, 2022 Master Builder

Classic Town Harbor Medium Builds Official Sets Town Town Sets Wrecker

6596: Wave Master

September 15, 2022September 15, 2022 Master Builder

Large Builds Official Sets UFO UFO Sets

6915: Warp Wing Fighter

November 9, 2019November 9, 2019 Master Builder

Official Sets Paradisa Town Town Sets Very Small Builds

1761: Paradisa Speedboat

April 10, 2023April 10, 2023 Master Builder

Extra Large Builds Official Sets Pirates Pirates I Pirates Sets

6289: Red Beard Runner

July 13, 2021July 13, 2021 Master Builder

LEGOLAND Medium Builds Official Sets Space

358: Rocket Base

March 5, 2026March 5, 2026 Master Builder

Batman I BATMAN™ BATMAN™ Sets Large Builds Official Sets

7781: The Batmobile: Two-Face’s Escape

March 27, 2026March 27, 2026 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
Train
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.