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 4685 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

6611 – Back A

February 20, 2024February 20, 2024 Master Builder

6350 – Back D

April 9, 2020April 9, 2020 Master Builder

5830 – Back B

April 19, 2021April 19, 2021 Master Builder

2331 – Back D

December 29, 2021December 29, 2021 Master Builder

6076 – Back C

January 30, 2024February 6, 2024 Master Builder

6391 – Back C

March 13, 2024March 13, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

Life on Mars Life on Mars Sets Official Sets Very Small Builds

7310: Mono Jet

April 16, 2021April 16, 2021 Master Builder

Year Released: 2001BricklinkInstructions

ABCs Blacktron II Blacktron II Sets Official Sets Small Builds

6887: Allied Avenger

October 5, 2019July 31, 2023 Master Builder

Bjarne Tveskov Futron Sets Futuron Official Sets Small Builds

6850: Auxiliary Patroller

September 24, 2019July 29, 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

ABCs Exo-Force Exo-Force Sets Medium Builds Official Sets

7700: Stealth Hunter

March 26, 2026March 26, 2026 Master Builder

Extra Large Builds Official Sets Studio Sets Studios

1382: Scary Laboratory

August 10, 2026August 10, 2026 Master Builder

Black Knights Castle Castle Sets Official Sets Small Builds

6018: Battle Dragon

October 5, 2019April 4, 2020 Master Builder

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

4501: Mos Eisley Cantina

December 29, 2021December 29, 2021 Master Builder

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

7180: B-wing at Rebel Control Center

August 17, 2023April 21, 2026 Master Builder

Large Builds M:Tron M:Tron Alternate Builds M:Tron Sets Official Sets Space Super Model

6862: Secret Space Voyager

July 29, 2023July 29, 2023 Master Builder

Extra Large Builds Official Sets Spider-Man Spider-Man 2 Spider-Man Sets

4856: Doc Ock’s Hideout

December 16, 2025December 16, 2025 Master Builder

ABCs Classic Space Classic Space Sets Large Builds Official Sets

6952: Solar Power Transporter

September 22, 2019March 20, 2025 Master Builder

9V Medium Builds Official Sets Train Train Sets

4536: Blue Hopper Car

July 10, 2026July 10, 2026 Master Builder

Ice Planet 2002 Ice Planet 2002 Sets Jørn Thomsen Official Sets Space Very Small Builds

6814: Ice Tunnelator

April 6, 2020April 2, 2025 Master Builder

Aquashark Aquazone Aquazone Sets Official Sets Very Small Builds

6100: Aquashark Dart

March 20, 2023March 21, 2023 Master Builder

Box Story Fabuland Fabuland Sets Official Sets Small Builds

3676: Catherine Cat’s Fun Park

March 1, 2025March 1, 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.