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
- Train
- 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 D

April 20, 2025April 21, 2025 Master Builder 3690 Views

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

Back D

Contributions

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

← 6673 – Back C
5935: Island Hopper →

You May Also Like

6088 – Back A

January 24, 2022January 24, 2022 Master Builder

1974-3: Smuggler’s Hayride

September 7, 2023September 8, 2023 Master Builder

6875 – Back C

September 16, 2019March 14, 2025 Master Builder

6557 – Back D

December 29, 2021December 29, 2021 Master Builder

Book 226 – Cover

February 9, 2023February 9, 2023 Master Builder

6358 – Back A

February 24, 2022July 18, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

BIONICLE BIONICLE Sets Extra Large Builds Official Sets Playsets

8927: Toa Terrain Crawler

March 3, 2026March 3, 2026 Master Builder

Year Released: 2007BricklinkInstructions

Classic Town Official Sets Supplemental Town

6311: Curved Road Plates

October 10, 2022October 10, 2022 Master Builder

Airport Classic Town Large Builds Official Sets Town Town Sets

1687: Midnight Transport

January 25, 2022January 25, 2022 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

1747: Treasure Cave

May 6, 2022May 6, 2022 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets Space

1968: {Unknown}

August 28, 2020September 13, 2023 Master Builder

Islanders Medium Builds Official Sets Pirates Pirates I Pirates Sets

6262: King Kahuka’s Throne

June 1, 2022June 1, 2022 Master Builder

Life on Mars Life on Mars Sets Official Sets Very Small Builds

7300 (1414, 7308, Kabaya: Life On Mars 1): Double Hover

February 24, 2025February 25, 2025 Master Builder

ABCs Bjarne Tveskov Blacktron Blacktron Sets Large Builds Official Sets Space

6954: Renegade

September 7, 2020October 16, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6849: Satellite Patroller

January 13, 2021January 13, 2021 Master Builder

Construction LEGOLAND Medium Builds Official Sets

730: Steam Shovel with Carrier

February 21, 2024February 21, 2024 Master Builder

Extra Large Builds Official Sets Technic Technic Sets

857: Motorcycle

January 6, 2025January 6, 2025 Master Builder

Blacktron Blacktron Sets Daniel August Krentz Extra Large Builds Official Sets Space

6987: Message Intercept Base

September 12, 2019March 2, 2026 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6251: Pirate Mini Figures (Sea Mates)

April 9, 2020April 9, 2020 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

1558: Mobile Command Trailer

December 18, 2021December 18, 2021 Master Builder

Airport Classic Town Extra Large Builds Official Sets Town Town Sets

6396: International Jetport

July 14, 2021July 14, 2021 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6232: Skeleton Crew

July 13, 2021July 13, 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
Train
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.