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 D

October 19, 2019April 21, 2026 Master Builder 5008 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 C
6022: Horse Cart →

You May Also Like

6258 – Back A

July 8, 2022July 12, 2022 Master Builder

6054 – Back B

April 10, 2021April 26, 2023 Master Builder

2153 – Back A

May 11, 2026May 13, 2026 Master Builder

1750 – Back A

July 13, 2021July 13, 2021 Master Builder

6266 – Back A

December 27, 2021June 3, 2022 Master Builder

6593 – Back A

February 24, 2022July 20, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

Adventurers Adventurers Sets Dino Island Medium Builds Official Sets

5935: Island Hopper

April 21, 2025April 21, 2025 Master Builder

Year Released: 2000BricklinkInstructions

Official Sets Race Town Town Sets Very Small Builds

6604: Formula-1 Racer

November 25, 2020November 25, 2020 Master Builder

Medium Builds Official Sets Pirates Pirates I Pirates Sets

6249: Pirates Ambush

November 16, 2019February 20, 2025 Master Builder

Castle Castle Sets Lion Knights Official Sets Small Builds

6010: Supply Wagon

July 13, 2021July 13, 2021 Master Builder

Exo-Force Official Sets Small Builds

7711: Sentry

August 11, 2023August 11, 2023 Master Builder

Extreme Team Official Sets Small Builds Town Town Sets

2963: Extreme Racer

January 30, 2024January 30, 2024 Master Builder

Box Story Classic Town Extra Large Builds Official Sets Police Town Town Sets

6398: Central Precinct HQ

February 19, 2025February 19, 2025 Master Builder

Duplicate Set Number Official Sets UFO UFO Sets Very Small Builds

6901-2: Space Plane

December 16, 2025December 16, 2025 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6821: Shovel Buggy (Geological Inspection)

February 17, 2026February 17, 2026 Master Builder

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

6211: Imperial Star Destroyer

February 6, 2024February 7, 2024 Master Builder

Indians Jørn Thomsen Medium Builds Official Sets Western Western Sets

6746: Chief’s Tepee

February 27, 2023July 29, 2023 Master Builder

Classic Town Hospital Official Sets Small Builds Town Town Sets

6666: Ambulance

October 30, 2021October 30, 2021 Master Builder

Medium Builds Official Sets Space Unitron Unitron Sets

1789: Star Hawk II

July 18, 2020July 18, 2020 Master Builder

Blacktron II Blacktron II Alternate Builds Blacktron II Sets Jørn Thomsen Large Builds Official Sets Space Super Model

6861: Blacktron Super Model

July 29, 2023July 29, 2023 Master Builder

Classic Town Off-Road Official Sets Small Builds Town Town Sets

6641: 4-Wheelin’ Truck (Four Wheelin’ Truck)

May 7, 2022May 7, 2022 Master Builder

Large Builds Official Sets Space UFO UFO Sets

6975: Alien Avenger

November 9, 2019July 21, 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.