Skip to content
Back of the Box Builds

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
    • Submit Instructions!
    • New Instructions
    • New Official Sets
    • New Alternate Builds
    • Minifigs
    • Very Small Builds
    • Small Builds
    • Medium Builds
    • Large Builds
    • Extra Large Builds
    • How BOTBB was Built
  • 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 7115 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

6832 – Back B

October 5, 2019October 25, 2021 Master Builder

2151 – Back C

January 14, 2021January 14, 2021 Master Builder

6806: Surface Hopper

April 16, 2021April 16, 2021 Master Builder

305: Two Crater Plates

March 6, 2026March 6, 2026 Master Builder

6849 – Back A

January 13, 2021January 13, 2021 Master Builder

6195: Neptune Discovery Lab (Aqua Dome 7)

January 20, 2022February 11, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

6706: Frontier Patrol
Cowboys Official Sets Very Small Builds Western Western Sets 

6706: Frontier Patrol

October 10, 2023October 10, 2023 Master Builder

Year Released: 1997BricklinkInstructions

6581: Dig N’ Dump
Classic Town Construction Medium Builds Official Sets Town Town Sets 

6581: Dig N’ Dump

November 7, 2022November 7, 2022 Master Builder
6579: Ice Surfer
Arctic Medium Builds Official Sets Town Town Sets 

6579: Ice Surfer

May 22, 2026May 22, 2026 Master Builder
6821: Shovel Buggy (Geological Inspection)
Classic Space Classic Space Sets Official Sets Space Very Small Builds 

6821: Shovel Buggy (Geological Inspection)

February 17, 2026February 17, 2026 Master Builder
6262: King Kahuka’s Throne
Islanders Medium Builds Official Sets Pirates Pirates I Pirates Sets 

6262: King Kahuka’s Throne

June 1, 2022June 1, 2022 Master Builder
6341: Gas N’ Go Flyer
Airport Classic Town Official Sets Small Builds Town Town Sets 

6341: Gas N’ Go Flyer

December 27, 2021December 27, 2021 Master Builder
6125: Sea Sprint 9
Aquanauts Aquazone Aquazone Sets Jørn Thomsen Official Sets Very Small Builds 

6125: Sea Sprint 9

April 9, 2020July 29, 2023 Master Builder
6981: Aerial Intruder
ABCs Blacktron II Blacktron II Sets Jørn Thomsen Large Builds Official Sets Space 

6981: Aerial Intruder

September 22, 2019August 15, 2023 Master Builder
6195: Neptune Discovery Lab (Aqua Dome 7)
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
6199: Hydro Crystalization Station
ABCs Aquazone Aquazone Sets Box Story Extra Large Builds Hydronauts Official Sets Stingrays 

6199: Hydro Crystalization Station

February 18, 2025February 18, 2025 Master Builder
7111: Droid Fighter
Episode I Official Sets Small Builds Star Wars Star Wars Sets 

7111: Droid Fighter

July 14, 2021July 14, 2021 Master Builder
1558: Mobile Command Trailer
Classic Space Classic Space Sets Official Sets Small Builds Space 

1558: Mobile Command Trailer

December 18, 2021December 18, 2021 Master Builder
371-3: Seaplane
Airport LEGOLAND Medium Builds Official Sets 

371-3: Seaplane

October 8, 2024October 8, 2024 Master Builder
6082: Fire Breathing Fortress
Castle Castle Sets Dragon Knights Large Builds Official Sets 

6082: Fire Breathing Fortress

January 13, 2022January 13, 2022 Master Builder
6660: Hook and Haul Wrecker
Classic Town Off-Road Official Sets Small Builds Town Town Sets 

6660: Hook and Haul Wrecker

June 23, 2025June 23, 2025 Master Builder
6929: Starfleet Voyager
Classic Space Classic Space Sets Large Builds Official Sets 

6929: Starfleet Voyager

September 22, 2019April 3, 2023 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

Logo
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.