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 Small Alt Build Small Builds Space

6872 – Back C

October 19, 2019April 21, 2026 Master Builder 4500 Views

From: 6872: Xenon X-Craft
Name: TBD ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted on October 19, 2019 by: matt_0937.

← 6872 – Back B
6872 – Back D →

You May Also Like

4150: FreeStyle Building Set

December 17, 2025December 17, 2025 Master Builder

6981 – Back A

September 22, 2019November 3, 2021 Master Builder

6377 – Back A

May 22, 2026May 22, 2026 Master Builder

4735 – Back B

June 12, 2024June 17, 2024 Master Builder

7150 – Instructions 2

April 21, 2026April 21, 2026 Master Builder

6972 – Back B

September 15, 2019November 21, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

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

6208: B-wing Fighter

January 27, 2024January 27, 2024 Master Builder

Year Released: 2006BricklinkInstructions

Imperial Armada Official Sets Pirates Pirates Sets Small Builds

6244: Armada Sentry

November 16, 2019April 4, 2020 Master Builder

Box Plus Different Box Versions Official Sets Playscape/Play Stage Box Small Builds Time Cruisers Time Cruisers Sets

6499: Time Tunnelator with Time Machine

March 5, 2026March 5, 2026 Master Builder

Arctic Medium Builds Official Sets Town Town Sets

6579: Ice Surfer

May 22, 2026May 22, 2026 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6693: Recycle Truck

May 10, 2022May 10, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6872: Xenon X-Craft

October 19, 2019April 21, 2026 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets

6891: Gamma-V Laser Craft

September 13, 2019August 3, 2024 Master Builder

Chamber of Secrets Extra Large Builds Harry Potter Harry Potter Sets Official Sets

4730: The Chamber of Secrets

January 23, 2024January 23, 2024 Master Builder

Adventurers Adventurers Sets Jungle Official Sets Small Builds

5925: Pontoon Plane

March 5, 2026March 5, 2026 Master Builder

Exploriens Exploriens Sets Medium Builds Official Sets

6938: Scorpion Detector

March 21, 2023March 5, 2026 Master Builder

BIONICLE BIONICLE Sets Large Builds Official Sets Playsets

8926: Toa Undersea Attack

March 3, 2026March 3, 2026 Master Builder

Large Builds Model Team Model Team Sets Official Sets

5540: Formula I Racer

February 10, 2026March 4, 2026 Master Builder

Official Sets Race Small Builds Town Town Jr Town Sets

6467: Power Pitstop

June 23, 2025June 23, 2025 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

Blacktron Blacktron Sets Medium Builds Official Sets

6894: Invader

November 20, 2019November 20, 2019 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6805: Astro Dasher

December 10, 2025December 10, 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.