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 3357 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

889 – Back A

May 6, 2024May 7, 2024 Master Builder

8002 – Back A

August 17, 2023September 1, 2023 Master Builder

6512 – Back C

June 6, 2022June 6, 2022 Master Builder

6973 – Back D

September 26, 2019May 10, 2024 Master Builder

1498 – Back B

March 11, 2024March 11, 2024 Master Builder

920 – Back B

February 2, 2021October 25, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

Large Builds Official Sets UFO UFO Sets

6915: Warp Wing Fighter

November 9, 2019November 9, 2019 Master Builder

Year Released: 1997Bricklink

Classic Town Fire Medium Builds Official Sets Town Town Sets

6480: Hook and Ladder Truck

July 8, 2022July 8, 2022 Master Builder

Castle Castle Sets Official Sets Royal Knights Small Builds

6036: Skeleton Surprise

February 28, 2023February 28, 2023 Master Builder

Divers Medium Builds Official Sets Town Town Sets

6558: Shark Cage Cove

December 29, 2021December 29, 2021 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

1747: Treasure Cave

May 6, 2022May 6, 2022 Master Builder

Medium Builds Official Sets Technic Technic Sets

854: Go-Kart

August 28, 2023January 6, 2025 Master Builder

Classic Space Classic Space Sets Different Box Versions Different Set Numbers Jens Nygaard Knudsen LL Link Medium Builds Official Sets Space

924 (487): Space Cruiser

January 25, 2022October 17, 2024 Master Builder

Classic Town Off-Road Official Sets Small Builds Town Town Sets

6672: Safari Off-Road Vehicle

January 28, 2022January 28, 2022 Master Builder

Castle Castle Sets Fright Knights Large Builds Official Sets

6087: Witch’s Magic Manor

July 8, 2022July 8, 2022 Master Builder

Castle Castle Sets Dark Forest Official Sets Small Builds

6024: Bandit Ambush

April 16, 2021April 16, 2021 Master Builder

Castle Castle Sets Forestmen Medium Builds Niels Milan Pedersen Official Sets

6054: Forestmen’s Hideout

April 10, 2021July 29, 2023 Master Builder

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

1875: Meteor Monitor

July 14, 2021January 22, 2026 Master Builder

Classic Town Medium Builds Official Sets Race Town Town Sets

6335: Indy Transport

November 29, 2023November 29, 2023 Master Builder

Medium Builds Official Sets Town Town Sets

6551: Checkered Flag 500

November 21, 2023November 21, 2023 Master Builder

Large Builds Model Team Model Team Sets Official Sets

5521: Sea Jet

January 12, 2021January 31, 2026 Master Builder

Imperial Soldiers Official Sets Pirates Pirates I Pirates Sets Small Builds

6259: Broadside’s Brig

April 16, 2024April 16, 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.