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 3696 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

4793 – Back A

February 21, 2024February 21, 2024 Master Builder

6380 – Back A

February 14, 2023February 19, 2023 Master Builder

6081 – Back C

June 30, 2022June 30, 2022 Master Builder

6359 – Back C

October 8, 2024October 8, 2024 Master Builder

5550 – Back A

February 9, 2026March 4, 2026 Master Builder

6047 – Back B

November 18, 2021November 18, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

Arctic Medium Builds Official Sets Town Town Sets

6573: Arctic Expedition

May 22, 2026May 22, 2026 Master Builder

Year Released: 2000BricklinkInstructions

Box Story Large Builds Official Sets Pirates Pirates I Pirates Sets

6281: Pirates Perilous Pitfall

February 21, 2025February 21, 2025 Master Builder

Official Sets Power Miners Power Miners Sets Small Builds

8957: Mine Mech

March 27, 2026March 27, 2026 Master Builder

Drome Racers Official Sets Racers Very Small Builds

4592: Red Monster

November 14, 2025November 14, 2025 Master Builder

Classic Town Extra Large Builds Official Sets Town Town Sets Traffic

6393: Big-Rig Truck Stop

June 28, 2022June 28, 2022 Master Builder

Extra Large Builds Official Sets Pirates Pirates I Pirates Sets

6289: Red Beard Runner

July 13, 2021July 13, 2021 Master Builder

Box Story Imperial Soldiers Large Builds Niels Milan Pedersen Official Sets Pirates Pirates I Pirates Sets

6274: Caribbean Clipper

February 8, 2022February 21, 2025 Master Builder

Airport LEGOLAND Medium Builds Official Sets

371-3: Seaplane

October 8, 2024October 8, 2024 Master Builder

Medium Builds Official Sets Studio Sets Studios

1381: Vampire’s Crypt

July 2, 2024July 2, 2024 Master Builder

Castle Castle Sets Official Sets Royal Knights Very Small Builds

1752: Boat with Armor

April 10, 2023April 10, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6872: Xenon X-Craft

October 19, 2019April 21, 2026 Master Builder

ABCs Blacktron II Blacktron II Sets Official Sets Very Small Builds

6851: Tri-Wheeled Tyrax

October 24, 2019July 31, 2023 Master Builder

Box Story Fabuland Fabuland Sets Official Sets Small Builds

3676: Catherine Cat’s Fun Park

March 1, 2025March 1, 2025 Master Builder

Classic Town Official Sets Police Town Town Sets Very Small Builds

600: Police Patrol

July 11, 2024July 11, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

6874: Moon Rover

November 6, 2023November 6, 2023 Master Builder

Boat Fire Medium Builds Official Sets

775: Fire Fighter Ship

July 22, 2024July 22, 2024 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.