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 4654 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

6039 – Back A

August 18, 2023August 22, 2023 Master Builder

5830 – Back B

April 19, 2021April 19, 2021 Master Builder

6896 – Back B

January 26, 2022January 26, 2022 Master Builder

6675 – Back D

March 20, 2023March 22, 2023 Master Builder

6175 – Back B

January 20, 2022January 20, 2022 Master Builder

6115 – Back A

March 20, 2023March 21, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Castle Castle Sets Lion Knights Official Sets Small Builds

6039: Twin Arm Launcher

April 10, 2021April 10, 2021 Master Builder

Year Released: 1988BricklinkInstructions

Island Xtreme Stunts Island Xtreme Stunts Sets Medium Builds Official Sets

6734: Beach Cruiser

April 7, 2026April 7, 2026 Master Builder

Aquazone Aquazone Sets Hydronauts Official Sets Small Builds

6110: Solo Sub

February 13, 2025February 13, 2025 Master Builder

Medium Builds Official Sets Pirates Pirates I Pirates Sets

6268: Renegade Runner

April 9, 2020July 13, 2021 Master Builder

Large Builds Official Sets Star Wars Star Wars Sets

7161: Gungan Sub

April 21, 2026April 21, 2026 Master Builder

Airport Classic Town Medium Builds Official Sets Town Town Sets

1818: Aircraft and Ground Support Equipment and Vehicle

April 7, 2025April 7, 2025 Master Builder

Classic Town Gas Station Official Sets Small Builds Town Town Sets

671: Shell Fuel Pumper

October 20, 2019April 4, 2020 Master Builder

Building Classic Town Official Sets Small Builds Town Town Sets

6592: Vacation Hideaway (Weekend Cottage)

June 23, 2025June 23, 2025 Master Builder

Drome Racers Official Sets Racers Small Builds

4594: Maverick Sprinter & Hot Arrow

February 21, 2025February 21, 2025 Master Builder

Boat Fire Medium Builds Official Sets

775: Fire Fighter Ship

July 22, 2024July 22, 2024 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6251: Pirate Mini Figures (Sea Mates)

April 9, 2020April 9, 2020 Master Builder

9V Medium Builds Official Sets Town Train Train Sets

4539: Manual Level Crossing

May 22, 2026May 22, 2026 Master Builder

Episode IV/V/VI Extra Large Builds Official Sets Star Wars Star Wars Sets

7184: Trade Federation MTT

April 21, 2026April 21, 2026 Master Builder

Basic Set Duplo Duplo Sets Official Sets Very Small Builds

2333: Animal

May 16, 2023May 16, 2023 Master Builder

Bonus/Value Packs Imperial Guards Official Sets Pirates Pirates Alternate Builds Pirates I Small Builds

1795 – Side R

March 30, 2026March 30, 2026 Master Builder

Official Sets Small Builds Space UFO UFO Sets

6818: Cyborg Scout

July 18, 2022July 18, 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.