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 3507 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

6553 – Back B

December 4, 2023December 4, 2023 Master Builder

6555 – Back C

February 8, 2023February 8, 2023 Master Builder

7190 – Back A

November 14, 2019November 14, 2019 Master Builder

6441 – Back C

November 6, 2019November 6, 2019 Master Builder

375-2 – Back B

November 8, 2019September 5, 2025 Master Builder

6080 – Back B

October 5, 2019October 5, 2019 Master Builder

EXPLORE MORE OFFICIAL SETS

Belville Belville Sets Lion Knights Medium Builds Official Sets Recreation

5847: Surfers’ Paradise

April 2, 2025April 2, 2025 Master Builder

Year Released: 1998BricklinkInstructions

Jurassic Park III Medium Builds Official Sets Studio Alternate Builds Studio Sets Studios

1371: Spinosaurus Attack Studio

January 6, 2022June 4, 2024 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

ABCs Bjarne Tveskov Blacktron Blacktron Sets Large Builds Official Sets Space

6954: Renegade

September 7, 2020October 16, 2024 Master Builder

Box Story Extra Large Builds Niels Milan Pedersen Official Sets Pirates Pirates I Pirates Sets

6285: Black Seas Barracuda

August 3, 2023February 20, 2025 Master Builder

Medium Builds Official Sets Paradisa Town Town Sets

6404: Carriage Ride

January 6, 2025January 6, 2025 Master Builder

Classic Town Fire Official Sets Small Builds Town Town Sets

6643: Fire Truck

July 2, 2024July 2, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6849: Satellite Patroller

January 13, 2021January 13, 2021 Master Builder

Building LEGOLAND Medium Builds Official Sets

550-2: Windmill

March 3, 2026March 3, 2026 Master Builder

Castle Castle Sets Dragon Knights Official Sets Small Builds

6056: Dragon Wagon

December 28, 2021June 30, 2022 Master Builder

Extra Large Builds Jørn Thomsen Official Sets Western Western Sets

6769: Fort Legoredo

November 10, 2019July 29, 2023 Master Builder

ABCs CHIMA™ CHIMA™ Sets Extra Large Builds Official Sets

70008: Gorzan’s Gorilla Striker

March 26, 2026March 26, 2026 Master Builder

Castle Castle Sets Crusaders Daniel August Krentz Extra Large Builds Official Sets

6081: King’s Mountain Fortress

June 30, 2022July 29, 2023 Master Builder

Airport Classic Town Official Sets Small Builds Town Town Sets

6536: Aero Hawk

January 22, 2026January 22, 2026 Master Builder

Box Marketing Blurb Extra Large Builds Jørn Thomsen M:Tron M:Tron Sets Official Sets

6989: Mega Core Magnetizer (Multi Core Magentizer)

September 15, 2019February 18, 2026 Master Builder

Chamber of Secrets Harry Potter Harry Potter Sets Medium Builds Official Sets

4733: The Dueling Club

March 3, 2023March 3, 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
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.