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

Airport Alternate Builds Classic Town Instructions Added Small Alt Build Small Builds Town Town Alternate Builds

6673 – Back A

April 20, 2025April 21, 2025 Master Builder 3266 Views

From: 6673: Solo Trainer
Name: Universal Trainer ¹
Instructions: View PDF

Contributions

Name and PDF submitted on April 20, 2025 by: KILDET

← Missile Cruncher
6673 – Back B →

You May Also Like

8369 – Inside B

November 13, 2024November 13, 2024 Master Builder

1580 – Back C

July 12, 2021July 12, 2021 Master Builder

7186 – Back B

April 21, 2026April 21, 2026 Master Builder

3152 – Back A

July 10, 2024July 10, 2024 Master Builder

6349 – Back C

July 1, 2021July 1, 2021 Master Builder

1621: Lunar MPV Vehicle

September 6, 2023September 7, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Episode IV/V/VI Official Sets Small Builds Star Wars Star Wars Sets

7106: Droid Escape

March 1, 2023March 1, 2023 Master Builder

Year Released: 2001BricklinkInstructions

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

4719: Quality Quidditch Supplies

March 22, 2025March 22, 2025 Master Builder

Castle Castle Sets Forestmen Official Sets Small Builds

1680: Hay Cart with Smugglers

August 12, 2024September 24, 2024 Master Builder

Blacktron Blacktron Sets Medium Builds Official Sets

6894: Invader

November 20, 2019November 20, 2019 Master Builder

Classic Town Coast Guard Large Builds Official Sets Town Town Sets

6387: Coastal Rescue Base

July 15, 2022July 15, 2022 Master Builder

Classic Town Construction Official Sets Town Town Sets Very Small Builds

607: Mini Loader

October 19, 2019April 4, 2020 Master Builder

Box Story Large Builds Official Sets Pirates Pirates I Pirates Sets

6281: Pirates Perilous Pitfall

February 21, 2025February 21, 2025 Master Builder

Episode I Official Sets Small Builds Star Wars Star Wars Sets

7115: Gungan Patrol

January 12, 2021April 22, 2026 Master Builder

Blacktron Blacktron Sets Bonus/Value Packs Castle Castle Sets Classic Town Forestmen Official Sets Small Builds Space Town Traffic

1675: Legoland Triple Pack

October 12, 2021October 12, 2021 Master Builder

Drome Racers Official Sets Racers Very Small Builds

4583: Maverick Storm

October 22, 2021February 21, 2025 Master Builder

Large Builds Official Sets Star Wars Star Wars Sets

7140: X-wing Fighter

November 10, 2019April 21, 2026 Master Builder

Classic Town Construction Official Sets Small Builds Town Town Sets

6662: Backhoe

July 8, 2022July 8, 2022 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

Official Sets Small Builds Space Port Town Town Sets

6465: Space Port Jet

March 3, 2025March 3, 2025 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 Space Classic Space Sets Official Sets Small Builds Space

6845: Cosmic Charger

January 14, 2025January 14, 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
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.