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 3223 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

6097 – Side

March 1, 2023March 1, 2023 Master Builder

6887 – Back D

October 5, 2019October 25, 2021 Master Builder

6380 – Back A

February 14, 2023February 19, 2023 Master Builder

6699 – Back E

October 28, 2025October 28, 2025 Master Builder

6385: Fire House-I

August 7, 2022August 7, 2022 Master Builder

4751 – Back A

May 16, 2023May 16, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Blacktron II Blacktron II Alternate Builds Blacktron II Sets Jørn Thomsen Large Builds Official Sets Space Super Model

6861: Blacktron Super Model

July 29, 2023July 29, 2023 Master Builder

Year Released: 1991Designer: Jørn ThomsenBricklinkInstructions

Aquanauts Aquazone Aquazone Sets Official Sets Very Small Builds

1749: Paravane

July 26, 2020July 26, 2020 Master Builder

Box Story Medium Builds Official Sets Time Cruisers Time Cruisers Sets

6497: Twisted Time Train

March 17, 2025March 17, 2025 Master Builder

Classic Town Official Sets Recreation Small Builds Town Town Sets

6514: Trail Ranger

May 10, 2022May 10, 2022 Master Builder

ABCs Classic Space Classic Space Sets Medium Builds Official Sets Space

6780: XT-Starship

October 12, 2021September 9, 2024 Master Builder

Imperial Guards Official Sets Pirates Pirates I Pirates Sets Small Builds

6266: Cannon Cove

December 27, 2021June 3, 2022 Master Builder

Castle Castle Sets Lion Knights Official Sets Small Builds

6017: King’s Oarsman

September 24, 2024September 24, 2024 Master Builder

Launch Command Medium Builds Official Sets Town Town Sets

6336: Launch Response Unit

July 12, 2021July 12, 2021 Master Builder

Basic Set Official Sets Samsonite Samsonite Sets

102: Super Value Set

March 1, 2023March 1, 2023 Master Builder

Official Sets Small Builds Studio Sets Studios

1380: Werewolf Ambush

December 16, 2025December 16, 2025 Master Builder

Designer Sets Designer Sets Alternate Builds Designer Sets Set Medium Builds Official Sets

4883: Gear Grinders

August 2, 2021August 2, 2021 Master Builder

Castle Castle Sets Forestmen Lion Knights Official Sets Small Builds

6055: Prisoner Convoy

May 20, 2021October 1, 2024 Master Builder

Black Knights Castle Castle Sets Official Sets Small Builds

6018: Battle Dragon

October 5, 2019April 4, 2020 Master Builder

Box Story Fabuland Fabuland Sets Official Sets Small Builds

3676: Catherine Cat’s Fun Park

March 1, 2025March 1, 2025 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

Episode III Large Builds Official Sets Star Wars Star Wars Sets

7257: Ultimate Lightsaber Duel

March 1, 2023March 1, 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 © 2025 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.