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

Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Large Alt Build Large Builds Space

6971 – Inside A

September 14, 2019October 25, 2021 Master Builder 3407 Views

From: 6971: Inter-Galactic Command Base
Name: Celestial Trireme ¹
Instructions: PDF (Photo Sequence)

Contributions

Name and PDF (Photo Sequence) submitted on February 7, 2021 by: Moriboe

← 897: Mobile Missile Command
6971 – Inside B →

You May Also Like

6687 – Back A

December 27, 2021December 27, 2021 Master Builder

6250 – Back B

February 20, 2025February 20, 2025 Master Builder

6551 – Back D

November 21, 2023November 21, 2023 Master Builder

1749 – Back A

July 26, 2020July 26, 2020 Master Builder

6673 – Back A

April 20, 2025April 21, 2025 Master Builder

6592 – Back A

June 23, 2025June 23, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Town Extra Large Builds Harbor Official Sets Town Town Sets Wrecker

6543: Sail N’ Fly Marina

July 22, 2022July 22, 2022 Master Builder

Year Released: 1994BricklinkInstructions

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

1509: Town Value Pack

October 8, 2024October 8, 2024 Master Builder

Extra Large Builds Model Team Model Team Sets Official Sets

5581: Magic Flash

January 2, 2024January 2, 2024 Master Builder

Classic Town Official Sets Police Town Town Sets Very Small Builds

6623: Police Car

October 13, 2021October 13, 2021 Master Builder

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

6208: B-wing Fighter

January 27, 2024January 27, 2024 Master Builder

Classic Town Hospital LL Link Medium Builds Official Sets Town Town Sets

6482: Rescue Helicopter

April 9, 2020July 11, 2024 Master Builder

Episode I Medium Builds Official Sets Star Wars Star Wars Sets

7151: Sith Infiltrator

September 1, 2023September 1, 2023 Master Builder

Ice Planet 2002 Ice Planet 2002 Sets Jørn Thomsen Official Sets Space Very Small Builds

1731 (1711, Kabaya: Space 4): Ice Planet Scooter

April 6, 2020March 10, 2025 Master Builder

Classic Town Medium Builds Official Sets Recreation Town Town Sets

6359: Horse Trailer

October 8, 2024October 8, 2024 Master Builder

Classic Town Harbor Medium Builds Official Sets Town Town Sets Wrecker

6698: RV with Speedboat

June 28, 2022June 28, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6802: Space Probe

October 10, 2022October 10, 2022 Master Builder

ABCs Large Builds Official Sets Space UFO UFO Sets

6900: Cyber Saucer

October 2, 2024March 22, 2025 Master Builder

Extra Large Builds Official Sets Pirates Pirates I Pirates Sets

6289: Red Beard Runner

July 13, 2021July 13, 2021 Master Builder

Cargo Classic Town Medium Builds Official Sets Town Town Sets

6375: Trans Air Carrier

November 20, 2020November 20, 2020 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets Space

6928: Uranium Search Vehicle

January 12, 2021October 21, 2024 Master Builder

Cowboys Official Sets Very Small Builds Western Western Sets

6790: Bandit’s Wheelgun

October 10, 2023October 10, 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.