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

ABCs LEGO Magazine Space UFO UFO Alternate Builds You Can Build This

Ultimate Alien

March 22, 2025March 22, 2025 Master Builder 6654 Views

Misc
Build: Ultimate Alien
Submitted By: USER
Instructions:

*Alternate Build Connection: 6900: Cyber Saucer

LEGO Mania Magazine: January-February 1998 – Page 5
US LEGO Club Magazine

← Alien Planet Cruiser II
Space Creeper →

You May Also Like

6827: Strata Scooter

October 13, 2021October 13, 2021 Master Builder

6854: Alien Fossilizer

July 15, 2022March 22, 2025 Master Builder

6821 – Back B

February 17, 2026February 17, 2026 Master Builder

6899 – Back C

February 5, 2023October 4, 2024 Master Builder

6986: Mission Commander

April 3, 2022July 29, 2023 Master Builder

6970 – Inside A

January 20, 2021January 20, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

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

7127: Imperial AT-ST

December 29, 2021December 29, 2021 Master Builder

Year Released: 2001BricklinkInstructions

ABCs Box Marketing Blurb Jørn Thomsen Large Builds Official Sets Space Space Police II Space Police II Sets

6984: Galactic Mediator

March 18, 2022June 23, 2025 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

Classic Space Classic Space Sets Duplicate Set Number Official Sets Small Builds Space

6848: Interplanetary Shuttle

March 11, 2024March 11, 2024 Master Builder

ABCs Official Sets Race Town Town Sets Very Small Builds

6677: Motocross Racing

June 8, 2023July 31, 2023 Master Builder

Castle Castle Sets Lion Knights Official Sets Small Builds

6012: Siege Cart

September 24, 2024September 24, 2024 Master Builder

ABCs Jørn Thomsen Medium Builds Official Sets Spyrius Spyrius Sets

6939: Saucer Centurion

November 9, 2019October 1, 2024 Master Builder

ABCs Box Story Ice Planet 2002 Ice Planet 2002 Sets Jørn Thomsen Large Builds Official Sets Space

6973: Deep Freeze Defender

September 26, 2019December 17, 2024 Master Builder

Airport Classic Town Large Builds Official Sets Town Town Sets

6346: Shuttle Launching Crew

November 20, 2020August 10, 2026 Master Builder

Classic Town Official Sets Supplemental Town

6313: Cross-Road Plates

October 10, 2022October 10, 2022 Master Builder

LEGOLAND Medium Builds Official Sets Space

358: Rocket Base

March 5, 2026March 5, 2026 Master Builder

Indians Official Sets Very Small Builds Western Western Sets

2845: Indian Chief

October 10, 2023October 10, 2023 Master Builder

Classic Town Extra Large Builds Harbor Official Sets Town Town Sets Wrecker

6542: Launch & Load Seaport

August 1, 2022August 1, 2022 Master Builder

ABCs Blacktron II Blacktron II Sets Jørn Thomsen Large Builds Official Sets Space

6981: Aerial Intruder

September 22, 2019August 15, 2023 Master Builder

Construction Official Sets Town Town Jr Town Sets Very Small Builds

6470: Mini-dumper

July 10, 2026July 10, 2026 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

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.