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

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 3810 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

6067 – Back A

February 9, 2021July 12, 2023 Master Builder

6086 – Back B

October 11, 2021October 28, 2021 Master Builder

6377 – Back D

May 22, 2026May 22, 2026 Master Builder

6940: Alien Moon Stalker

September 12, 2019September 12, 2024 Master Builder

775 – Back B

July 22, 2024July 22, 2024 Master Builder

5935 – Back B

April 21, 2025April 21, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

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

4706: Forbidden Corridor

February 27, 2023February 27, 2023 Master Builder

Year Released: 2001BricklinkInstructions

Classic Space Classic Space Sets Official Sets Small Builds

6825: Cosmic Comet

September 12, 2019March 18, 2024 Master Builder

Batman I BATMAN™ BATMAN™ Sets Official Sets Small Builds

7779: The Batman Dragster: Catwoman Pursuit

March 27, 2026June 23, 2026 Master Builder

Box Story Islanders Medium Builds Official Sets Pirates Pirates I Pirates Sets

6278: Enchanted Island

February 20, 2025February 20, 2025 Master Builder

Classic Town Gas Station Official Sets Small Builds Town Town Sets

671: Shell Fuel Pumper

October 20, 2019April 4, 2020 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6649: Street Sweeper

July 8, 2022July 8, 2022 Master Builder

Basic Set Official Sets Samsonite Samsonite Sets

102: Super Value Set

March 1, 2023March 1, 2023 Master Builder

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

6209: Slave I (2nd edition)

February 1, 2024February 1, 2024 Master Builder

Classic Town Official Sets Post Office Small Builds Town Town Sets

6651: Post Office Van

February 3, 2021February 3, 2021 Master Builder

Adventurers Adventurers Sets Desert Large Builds Official Sets

5978: Sphinx Secret Surprise

October 28, 2019April 4, 2020 Master Builder

Islanders Medium Builds Official Sets Pirates Pirates I Pirates Sets

6262: King Kahuka’s Throne

June 1, 2022June 1, 2022 Master Builder

Black Knights Castle Castle Sets Medium Builds Official Sets

6059: Knight’s Stronghold

July 13, 2021July 13, 2021 Master Builder

Bonus/Value Pack Sets Castle Castle Sets Official Sets Royal Knights Small Builds

1843-3: {Royal Knights Unknown}

September 8, 2023September 13, 2023 Master Builder

Castle Castle Sets Daniel August Krentz Large Builds Official Sets Royal Knights

6078: Royal Drawbridge

January 12, 2022July 29, 2023 Master Builder

Extreme Team Official Sets Small Builds Town Town Sets

2963: Extreme Racer

January 30, 2024January 30, 2024 Master Builder

Airport Medium Builds Official Sets Town Town Sets World City

4032: Passenger Plane

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.