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

ABCs Classic Space Classic Space Sets Medium Builds Official Sets Space

6780: XT-Starship

October 12, 2021September 9, 2024 Master Builder 6048 Views

Year Released: 1986
Bricklink
Instructions

*Alternate Build Connection: 1988 Classic Space and Blacktron with Zack Commercial

Back A

Back A

← 6926 – Back D
6780 – Back A →

You May Also Like

6368: Jet Airliner

January 21, 2021January 21, 2021 Master Builder

1747: Treasure Cave

May 6, 2022May 6, 2022 Master Builder

4705: Snape’s Class

April 16, 2021April 16, 2021 Master Builder

6872 – Back A

October 19, 2019April 21, 2026 Master Builder

6375 – Back A

August 31, 2024September 6, 2024 Master Builder

6892 – Back C

March 17, 2022June 1, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Imperial Soldiers Niels Milan Pedersen Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6245: Harbor Sentry

July 13, 2021July 29, 2023 Master Builder

Year Released: 1989Designer: Niels Milan PedersenBricklinkInstructions

Large Builds Official Sets Space UFO UFO Sets

6975: Alien Avenger

November 9, 2019July 21, 2025 Master Builder

Airport Classic Town Extra Large Builds Official Sets Town Town Sets

6396: International Jetport

July 14, 2021July 14, 2021 Master Builder

Exploriens Exploriens Sets Official Sets Space Very Small Builds

1858: Droid Scout

July 8, 2022July 8, 2022 Master Builder

Castle Castle Sets Lion Knights Official Sets Small Builds

6049: Viking Voyager

June 30, 2022June 30, 2022 Master Builder

Medium Builds Official Sets Technic Technic Sets

8044: Universal Pneumatic Set

August 23, 2024August 23, 2024 Master Builder

Fire Official Sets Small Builds Town Town Sets World City

7043: Firefighter

January 22, 2024January 22, 2024 Master Builder

Bonus/Value Pack Sets Bonus/Value Packs Official Sets Race Small Builds Town

1509: Town Value Pack

October 8, 2024October 8, 2024 Master Builder

Black Falcons Castle Castle Sets Daniel August Krentz Large Builds Official Sets

6074: Black Falcon’s Fortress

October 14, 2021July 29, 2023 Master Builder

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

6672: Safari Off-Road Vehicle

January 28, 2022January 28, 2022 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets

6930: Space Supply Station

September 13, 2019September 11, 2023 Master Builder

ABCs Box Plus Insectoids Insectoids Sets Mask Official Sets Small Builds Space

6909: Sonic Stinger with Promotional Mask

October 4, 2024March 22, 2025 Master Builder

Bjarne Tveskov Blacktron II Blacktron II Sets Official Sets Space Very Small Builds

6812: Grid Trekkor

February 12, 2021July 29, 2023 Master Builder

Blacktron II Blacktron II Sets Large Builds Official Sets

6988: Alpha Centauri Outpost

October 24, 2019October 24, 2019 Master Builder

Classic Town Official Sets Recreation Small Builds Town Town Sets

6595: Surf Shack

April 9, 2020April 9, 2020 Master Builder

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

4707: Hagrid’s Hut

December 29, 2021December 29, 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.