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 Instructions Added M:Tron M:Tron Alternate Builds Medium Alt Build Medium Builds Space

6923 – Back C

October 1, 2019October 25, 2021 Master Builder 4360 Views

From: 6923: Particle Ionizer
Name: Suborbital Voyager ¹
Instructions: PDF (Photo Sequence)

Contributions

Name and PDF (Photo Sequence) submitted on September 18, 2019 by: plastic.ati

← 6923 – Back B
6881: Lunar Rocket Launcher →

You May Also Like

6530 – Back B

April 4, 2020April 19, 2021 Master Builder

6663 – Back C

June 6, 2022June 6, 2022 Master Builder

6596 – Back A

September 15, 2022September 15, 2022 Master Builder

1974-3 – Back A

September 7, 2023September 7, 2023 Master Builder

375-1 – Back B

September 11, 2023September 11, 2023 Master Builder

6828: Twin-Winged Spoiler

November 20, 2019May 25, 2020 Master Builder

EXPLORE MORE OFFICIAL SETS

Episode III Medium Builds Official Sets Star Wars Star Wars Sets

7250: Clone Scout Walker

February 17, 2025February 17, 2025 Master Builder

Year Released: 2005BricklinkInstructions

Official Sets Space Port Town Town Sets Very Small Builds

6458: Satellite with Astronaut

December 17, 2025December 17, 2025 Master Builder

Classic Town Official Sets Supplemental Town

6347: Monorail Accessory Track

August 27, 2023August 27, 2023 Master Builder

Official Sets Rock Raiders Rock Raiders Sets Small Builds

4950: Loader-Dozer

November 10, 2019December 16, 2019 Master Builder

Large Builds Launch Command Official Sets Town Town Sets

6544: Shuttle Transcon 2

July 20, 2022July 20, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

1580: Lunar Scout

July 12, 2021July 12, 2021 Master Builder

Cowboys Official Sets Very Small Builds Western Western Sets

6790: Bandit’s Wheelgun

October 10, 2023October 10, 2023 Master Builder

Official Sets Pirates Pirates I Pirates Sets Small Builds

6258: Smuggler’s Shanty

July 8, 2022July 8, 2022 Master Builder

Classic Town Hospital Large Builds Official Sets Town Town Sets

6380: Emergency Treatment Center (St. Mary’s Hospital)

July 15, 2022July 15, 2022 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets Space

1968: {Unknown}

August 28, 2020September 13, 2023 Master Builder

Chamber of Secrets Harry Potter Harry Potter Sets Official Sets Small Builds

4735: Slytherin

February 27, 2023February 27, 2023 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets

6891: Gamma-V Laser Craft

September 13, 2019August 3, 2024 Master Builder

Box Marketing Blurb Castle Castle Sets Forestmen Medium Builds Official Sets

6071: Forestmen’s Crossing

October 23, 2019April 3, 2024 Master Builder

ABCs Castle Castle Sets Extra Large Builds Lion Knights Niels Milan Pedersen Official Sets

6080: King’s Castle

October 5, 2019August 16, 2023 Master Builder

Classic Town Official Sets Race Town Town Sets Very Small Builds

1096: Race Buggy

July 26, 2020July 26, 2020 Master Builder

Classic Town Medium Builds Official Sets Town Town Sets Traffic

6357: Stunt ‘Copter N’ Truck

January 28, 2022January 28, 2022 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.