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 3138 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

6817 – Back A

June 1, 2022June 1, 2022 Master Builder

6833 – Back B

April 11, 2020March 14, 2025 Master Builder

1896 – Back E

April 4, 2022April 4, 2022 Master Builder

Book 6000 – Page 6-7

September 27, 2023September 29, 2023 Master Builder

6950: Mobile Rocket Transport

January 12, 2021July 29, 2023 Master Builder

6444 – Back C

May 17, 2024May 30, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

Official Sets Small Builds Space Port Town Town Sets

6465: Space Port Jet

March 3, 2025March 3, 2025 Master Builder

Year Released: 1999BricklinkInstructions

Indians Official Sets Very Small Builds Western Western Sets

2846: Indian Kayak

October 10, 2023October 10, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6803: Space Patrol

September 21, 2019October 19, 2019 Master Builder

Classic Town Gas Station Medium Builds Official Sets Town Town Sets Wrecker

6594: Gas Transit

November 19, 2020July 8, 2025 Master Builder

Classic Town Extra Large Builds Official Sets Town Town Sets Traffic

1592-2: Town Square – Castle Scene (Dutch Version)

October 22, 2021October 22, 2021 Master Builder

Jørn Thomsen Large Builds Official Sets Western Western Sets

6765: Gold City Junction

November 10, 2019July 29, 2023 Master Builder

Classic Town Large Builds Official Sets Police Town Town Sets

381: Police Headquarters

July 27, 2023July 27, 2023 Master Builder

Official Sets Space UFO UFO Sets Very Small Builds

6800 (6816, Kabaya: Space 2): Cyber Blaster

October 4, 2024February 25, 2025 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

3442: Legoland California Truck Limited Edition

October 13, 2021October 13, 2021 Master Builder

Extra Large Builds Jørn Thomsen Official Sets Space Unitron Unitron Sets

6991: Monorail Transport Base

September 28, 2019July 29, 2023 Master Builder

Bonus/Value Packs Classic Town Fire Ice Planet 2002 Ice Planet 2002 Sets Official Sets Small Builds Space Town

1722: Rescue/Ice Planet Combo Pack

July 13, 2021April 4, 2024 Master Builder

Basic Large Builds Official Sets Universal Building Set

720: Basic Building Set

February 8, 2024February 9, 2024 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6645: Street Sweeper

November 20, 2020November 20, 2020 Master Builder

Box Plus Cowboys Official Sets Playscape/Play Stage Box Small Builds Western Western Sets

6799: Showdown Canyon

August 1, 2023October 8, 2024 Master Builder

Blacktron Blacktron Sets Bonus/Value Pack Sets LL Link Official Sets Very Small Builds

1875: Meteor Monitor

July 14, 2021October 16, 2024 Master Builder

Box Story Classic Town Extra Large Builds Official Sets Police Town Town Sets

6398: Central Precinct HQ

February 19, 2025February 19, 2025 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.