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
- Town
- Universal Building Set
- Western
- More Sets
- Misc
USEFUL LINKS
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Concepts and Prototypes Space

Alien Prototype

February 23, 2023February 12, 2025 Master Builder 5895 Views

Misc
Theme: Space

BrickJournal: Issue 6 Volume 2 – Page 41
TwoMorrows Publishing
Photo Credit: Niels Milan Pedersen’s personal LEGO archives

Build: TBD
Submitted By: USER
Instructions

← Space Police II Concept
BrickJournal Issue 6 Volume 2 Page 42 – Concept 1 →

You May Also Like

6932 – Back D

September 24, 2019January 10, 2022 Master Builder

6930 – Back C

November 18, 2020September 11, 2023 Master Builder

6876: Alienator

November 16, 2019October 16, 2024 Master Builder

2153 – Back B

May 22, 2026May 22, 2026 Master Builder

926 (493): Space Command Center

October 22, 2019July 31, 2023 Master Builder

6856: Planetary Decoder

April 16, 2021March 22, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

Extra Large Builds Official Sets Technic Technic Sets

8860: Car Chassis (Auto Chassis)

January 2, 2024January 2, 2024 Master Builder

Year Released: 1980BricklinkInstructions

Bjarne Tveskov Futron Sets Futuron Official Sets Small Builds

6875: Hovercraft

September 16, 2019October 16, 2024 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets Space

6926: Mobile Recovery Vehicle

October 12, 2021October 12, 2021 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6803: Space Patrol

September 21, 2019February 15, 2026 Master Builder

ABCs Classic Space Classic Space Sets Extra Large Builds Official Sets

6985: Cosmic Fleet Voyager

September 12, 2019August 16, 2023 Master Builder

Bonus/Value Pack Sets Castle Castle Sets Forestmen Official Sets Small Builds

1877: Crusader’s Cart

October 11, 2021September 24, 2024 Master Builder

Fire Official Sets Small Builds Town Town Sets World City

7043: Firefighter

January 22, 2024January 22, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6808: Galaxy Trekkor

January 21, 2021January 21, 2021 Master Builder

Batman I BATMAN™ BATMAN™ Sets Large Builds Official Sets

7781: The Batmobile: Two-Face’s Escape

March 27, 2026March 27, 2026 Master Builder

Official Sets Race Town Town Sets Very Small Builds

6528: Sand Storm Racer

July 8, 2022July 8, 2022 Master Builder

Bjarne Tveskov Large Builds Official Sets Space Space Police I Space Police I Sets

6781: SP-Striker

April 19, 2021July 29, 2023 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 – Side L

January 22, 2021March 14, 2025 Master Builder

Airport Classic Town Medium Builds Official Sets Town Town Sets

6440: Jetport Fire Squad

December 29, 2021December 29, 2021 Master Builder

Classic Town Official Sets Police Small Builds Town Town Sets

6642: Police Helicopter

April 8, 2020April 8, 2020 Master Builder

Classic Town Coast Guard Large Builds Official Sets Town Town Sets

6387: Coastal Rescue Base

July 15, 2022July 15, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

1580: Lunar Scout

July 12, 2021July 12, 2021 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
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.