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 Medium Alt Build Medium Builds Space

6931 – Back C

January 12, 2021March 14, 2025 Master Builder 4501 Views

From: 6931: FX-Star Patroller
Name: FX-Star and Surface Scout ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF, and .io file submitted January 2021 by: Mr.AstonishedRaccoon

← 6931 – Back B
6849: Satellite Patroller →

You May Also Like

1484 – Back B

December 28, 2021December 28, 2021 Master Builder

70008 – Gorilla Mini-Robot

March 26, 2026March 26, 2026 Master Builder

6655 – Back C

June 4, 2023June 4, 2023 Master Builder

6264: Forbidden Cove

July 1, 2022July 1, 2022 Master Builder

6355 – Back B

December 28, 2021December 28, 2021 Master Builder

920 – Back B

February 2, 2021October 25, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

Basic Happy Meal McDonalds Official Sets Polybag Universal Building Set Very Small Builds

1912: Car (Set A, 1)

April 1, 2025April 1, 2025 Master Builder

Year Released: 1984BricklinkInstructions

Basic Official Sets Universal Building Set Very Small Builds

1965: Basic Building Set

March 6, 2026March 6, 2026 Master Builder

Castle Castle Sets Lion Knights Official Sets Small Builds

6010: Supply Wagon

July 13, 2021July 13, 2021 Master Builder

Classic Town Fire Medium Builds Official Sets Town Town Sets

6358: Snorkel Squad

April 15, 2021April 15, 2021 Master Builder

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

7264: Imperial Inspection

April 15, 2026April 15, 2026 Master Builder

Goblet of Fire Harry Potter Harry Potter Sets Medium Builds Official Sets

4762: Rescue from the Merpeople

May 16, 2023May 16, 2023 Master Builder

Aquazone Aquazone Sets Box Story Hydronauts Large Builds Official Sets

6180: Hydro Search Sub

February 18, 2025February 18, 2025 Master Builder

Imperial Guards Medium Builds Official Sets Pirates Pirates I Pirates Sets

6263: Imperial Outpost

February 21, 2025February 21, 2025 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6633: Family Car

April 19, 2021April 19, 2021 Master Builder

Island Xtreme Stunts Island Xtreme Stunts Sets Large Builds Official Sets

6740: Xtreme Tower

April 16, 2026April 16, 2026 Master Builder

Castle Castle Sets Fright Knights Medium Builds Official Sets

6047: Traitor Transport

November 18, 2021November 18, 2021 Master Builder

Building Classic Town Medium Builds Official Sets Town Town Sets

6349: Vacation House

July 1, 2021July 12, 2021 Master Builder

ABCs Blacktron II Blacktron II Sets Official Sets Small Builds

6887: Allied Avenger

October 5, 2019July 31, 2023 Master Builder

Bonus/Value Packs Classic Space Classic Space Sets Duplicate Set Number Official Sets Small Builds Space

1969-2: Space Value Pack

January 29, 2025January 29, 2025 Master Builder

Official Sets Town Town Jr Town Sets Traffic Very Small Builds

6422: Telephone Repair

July 28, 2020July 28, 2020 Master Builder

Episode III Large Builds Official Sets Star Wars Star Wars Sets

7257: Ultimate Lightsaber Duel

March 1, 2023March 1, 2023 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.