Skip to content

Back of the Box Builds

LEGO Alternate Builds!

SETS
- Adventurers
- Aquazone
- 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
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Alternate Builds Insectoids Insectoids Alternate Builds Space Very Small Builds

6903 – Back A

October 4, 2024October 4, 2024 Master Builder 2373 Views

From: 6903: Bug Blaster
Name: TBD
Submitted by: USER
Instructions

← 6903: Bug Blaster
6903 – Back B →

You May Also Like

6344 – Back D

October 8, 2024October 8, 2024 Master Builder

6614 – Back D

June 30, 2023June 30, 2023 Master Builder

6232: Skeleton Crew

July 13, 2021July 13, 2021 Master Builder

7190 – Back B

November 14, 2019November 14, 2019 Master Builder

6010 – Back A

July 13, 2021July 13, 2021 Master Builder

6481 – Back A

August 31, 2022September 19, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

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

From: 1843: Space / Castle Value PackName: Space / Castle Flying Rocking Horse Instructions: View PDF | Download .io File

Gears Medium Builds Official Sets Universal Building Set

801: Gear Set

December 17, 2025December 17, 2025 Master Builder

Classic Space Classic Space Sets Large Builds Official Sets Space Super Model

1593: Super Model

February 3, 2021March 18, 2024 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

Castle Castle Sets Lion Knights Medium Builds Official Sets

6061: Siege Tower

January 6, 2022January 6, 2022 Master Builder

Airport Classic Town Official Sets Town Town Sets Very Small Builds

6529: Ultra Light I

July 14, 2022July 14, 2022 Master Builder

Classic Town Medium Builds Official Sets Police Town Town Sets

6430: Night Patroller

April 9, 2020February 4, 2021 Master Builder

Classic Town Extra Large Builds Official Sets Town Town Sets Traffic

1592-2: Town Square – Castle Scene (Dutch Version)

October 22, 2021October 22, 2021 Master Builder

Classic Space Classic Space Sets Large Builds Official Sets

6929: Starfleet Voyager

September 22, 2019April 3, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6844: Seismologic Vehicle (Sismobile)

October 22, 2019September 10, 2023 Master Builder

Bonus/Value Packs Castle Castle Sets Official Sets Royal Knights Small Builds Space Spyrius Spyrius Sets

1843: Space/Castle Value Pack

January 21, 2021September 13, 2023 Master Builder

Airport Classic Town Official Sets Small Builds Town Town Sets

6536: Aero Hawk

January 22, 2026January 22, 2026 Master Builder

Medium Builds Official Sets Robo Force Robo Force Alternate Builds Robo Force Sets Space

2151: Robo Raider

January 14, 2021September 3, 2025 Master Builder

Airport Classic Town Large Builds Official Sets Town Town Sets

6345: Aerial Acrobats

January 29, 2021September 15, 2022 Master Builder

Castle Castle Sets Dark Forest Official Sets Small Builds

6024: Bandit Ambush

April 16, 2021April 16, 2021 Master Builder

Large Builds Model Team Model Team Sets Official Sets

5521: Sea Jet

January 12, 2021January 31, 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
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.