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

Alternate Builds Castle Castle Alternate Builds Extra Large Builds

375-2 – Back D

November 8, 2019September 5, 2025 Master Builder 4652 Views

From: 375-2 (6075-2): Castle
Name: TBD
Submitted by: USER
Instructions

← 375-2 – Back C
6983: Ice Station Odyssey →

You May Also Like

6905 – Back A

February 22, 2023February 22, 2023 Master Builder

6991: Monorail Transport Base

September 28, 2019July 29, 2023 Master Builder

6345 – Back A

January 29, 2021September 15, 2022 Master Builder

6959 – Back D

April 27, 2020April 27, 2020 Master Builder

6336 – Back C

July 12, 2021July 12, 2021 Master Builder

725 – Side L

July 22, 2024July 22, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

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

1730: Snow Scooter

April 11, 2023April 11, 2023 Master Builder

Year Released: 1994InstructionsBricklink

Official Sets Space Port Town Very Small Builds

3066 (Kabaya: Town Space Port 1): Cosmos Glider

February 28, 2025February 28, 2025 Master Builder

Castle Castle Sets Lion Knights Official Sets Very Small Builds

6016: Knight’s Arsenal

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

9V Medium Builds Official Sets Town Train Train Sets

4532: Manual Level Crossing

May 22, 2026May 22, 2026 Master Builder

Bonus/Value Pack Sets Futron Sets Futuron Official Sets Small Builds Space

1974-4: Star Quest

September 7, 2023September 8, 2023 Master Builder

ABCs Box Plus Insectoids Insectoids Sets Mask Official Sets Small Builds Space

6909: Sonic Stinger with Promotional Mask

October 4, 2024March 22, 2025 Master Builder

Airport Classic Town Medium Builds Official Sets Town Town Sets

6673: Solo Trainer

November 18, 2020November 18, 2020 Master Builder

Bonus/Value Pack Alternate Builds Castle Castle Alternate Builds Instructions Added Official Sets Royal Knights Small Alt Build Small Builds Space Spyrius Spyrius Alternate Builds

1843 – Bottom

January 22, 2021March 14, 2025 Master Builder

ABCs Large Builds Official Sets Space UFO UFO Sets

6900: Cyber Saucer

October 2, 2024March 22, 2025 Master Builder

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

7144: Slave I

October 28, 2021October 28, 2021 Master Builder

Classic Town Harbor Medium Builds Official Sets Town Town Sets Wrecker

6596: Wave Master

September 15, 2022September 15, 2022 Master Builder

Blacktron II Blacktron II Alternate Builds Blacktron II Sets Jørn Thomsen Large Builds Official Sets Space Super Model

6861: Blacktron Super Model

July 29, 2023July 29, 2023 Master Builder

Bjarne Tveskov Blacktron II Blacktron II Sets Official Sets Space Very Small Builds

6812: Grid Trekkor

February 12, 2021July 29, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6806: Surface Hopper

April 16, 2021April 16, 2021 Master Builder

BIONICLE BIONICLE Sets Medium Builds Official Sets Playsets

8925: Barraki Deepsea Patrol

March 3, 2026March 3, 2026 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.