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 Concepts and Prototypes Sea People Sea-Tron Space

Aquadome

February 11, 2025February 18, 2025 Master Builder 6704 Views

Misc
Theme: Seatron, Sea People

*Alternate Build Connection: Aquazone, 6195: Neptune Discovery Lab (Aqua Dome 7), 6199: Hydro Crystalization Station

LEGO® Space: 1978-1992 – Page 157
Published: 2023
By: Tim Johnson
Dark Horse Books

Build: TBD
Submitted By: USER
Instructions

← Greytron
Sea People →

You May Also Like

6805 – Back C

December 10, 2025December 10, 2025 Master Builder

Space 3-Pack: Exploriens

October 2, 2024October 3, 2024 Master Builder

Seatron

February 23, 2023February 12, 2025 Master Builder

6985 – Back A

September 28, 2019November 18, 2021 Master Builder

6890 – Back A

October 7, 2019October 25, 2021 Master Builder

6845 – Back A

June 23, 2025June 24, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

9V Medium Builds Official Sets Town Train Train Sets

4539: Manual Level Crossing

May 22, 2026May 22, 2026 Master Builder

Year Released: 1991BricklinkInstructions

Classic Town Food and Drink Medium Builds Official Sets Town Town Sets

6376: Breezeway Cafe

February 3, 2021February 3, 2021 Master Builder

Large Builds Official Sets Race Town Town Sets

6713: Grip-n-Go Challenge

February 10, 2025February 10, 2025 Master Builder

Classic Town Construction Medium Builds Official Sets Town Town Sets

6361: Mobile Crane

April 9, 2020April 9, 2020 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6842: Shuttle Craft

October 21, 2019October 21, 2019 Master Builder

12V Large Builds Official Sets Town Train Train Sets

7725: Electric Passenger Train

December 29, 2021July 26, 2022 Master Builder

Castle Castle Sets Dark Forest Official Sets Small Builds

6024: Bandit Ambush

April 16, 2021April 16, 2021 Master Builder

Dino Attack Large Builds Official Sets

7475: Fire Hammer vs. Mutant Lizards

April 27, 2023April 27, 2023 Master Builder

Episode III Extra Large Builds Official Sets Star Wars Star Wars Sets

7261: Clone Turbo Tank

March 1, 2023March 1, 2023 Master Builder

Island Xtreme Stunts Island Xtreme Stunts Sets Large Builds Official Sets

6740: Xtreme Tower

April 16, 2026April 16, 2026 Master Builder

Futron Sets Futuron Official Sets Small Builds Space

6885: Saturn Base Main Team (Crater Crawler)

December 28, 2021December 28, 2021 Master Builder

ABCs Box Plus Insectoids Insectoids Sets Mask Official Sets Small Builds Space

6909: Sonic Stinger with Promotional Mask

October 4, 2024March 22, 2025 Master Builder

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

7700: Stealth Hunter

March 26, 2026March 26, 2026 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

ABCs Aquanauts Aquazone Aquazone Sets Extra Large Builds Jørn Thomsen Official Sets

6195: Neptune Discovery Lab (Aqua Dome 7)

January 20, 2022February 11, 2025 Master Builder

Extra Large Builds Jørn Thomsen Official Sets Western Western Sets

6769: Fort Legoredo

November 10, 2019July 29, 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.