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

Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Very Small Alt Build Very Small Builds

6823 – Back B

September 30, 2019October 25, 2021 Master Builder 4729 Views

From: 6823: Surface Transport
Name: Particle Searching Vehicle ¹
Instructions: PDF (Photo Sequence) | View PDF ²| Download .io File

Contributions

Name and PDF (Photo Sequence) submitted on September 18, 2019 by: plastic.ati
PDF and .io file submitted on September 18, 2019 by: matt_0937

← 6823 – Back A
6823 – Back C →

You May Also Like

924 – Back B

January 25, 2022September 11, 2023 Master Builder

6422: Telephone Repair

July 28, 2020July 28, 2020 Master Builder

6841 – Back A

October 3, 2019October 25, 2021 Master Builder

1665 – Back A

April 30, 2024April 30, 2024 Master Builder

6986 – Back B

July 6, 2023July 11, 2023 Master Builder

6824 – Back A

September 30, 2019November 18, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

ABCs Bjarne Tveskov Blacktron Blacktron Sets Large Builds Official Sets Space

6954: Renegade

September 7, 2020October 16, 2024 Master Builder

Year Released: 1987Designer: Bjarne TveskovBricklinkInstructions *Alternate Build Connection: 1988 Classic Space and Blacktron with Zack Commercial

Holiday and Event Holiday and Event Sets Official Sets Very Small Builds

1627: Santa Polybag

May 2, 2023May 2, 2023 Master Builder

Official Sets Town Town Jr Town Sets Very Small Builds Wrecker

6423: Tow-away Truck

July 10, 2026July 10, 2026 Master Builder

Classic Town Medium Builds Official Sets Town Town Sets Traffic

6373: Motorcycle Shop

January 6, 2022January 6, 2022 Master Builder

Exo-Force Official Sets Small Builds

7711: Sentry

August 11, 2023August 11, 2023 Master Builder

ABCs Official Sets Small Builds UFO UFO Sets

6836: V-Wing Fighter

October 24, 2019March 22, 2025 Master Builder

Airport Classic Town Official Sets Town Town Sets Very Small Builds

6515: Stunt Copter

February 2, 2022February 2, 2022 Master Builder

Airport Bonus/Value Packs Castle Castle Sets Classic Town Forestmen Futron Sets Futuron Official Sets Small Builds Space Town

1974: Legoland Triple Pack

September 7, 2023September 7, 2023 Master Builder

Castle Castle Sets Fright Knights Official Sets Small Builds

6037: Witch’s Windship

December 29, 2021December 29, 2021 Master Builder

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

4719: Quality Quidditch Supplies

March 22, 2025March 22, 2025 Master Builder

Dino Attack Large Builds Official Sets

7475: Fire Hammer vs. Mutant Lizards

April 27, 2023April 27, 2023 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets

6890: Cosmic Cruiser

October 7, 2019October 7, 2019 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

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

6212: X-wing Fighter

February 1, 2024February 1, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

6845: Cosmic Charger

January 14, 2025January 14, 2025 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

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.