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
Concepts and Prototypes Sea People Sea-Tron Space 

BrickJournal Issue 6 Volume 2 Page 43 – Proto 1

February 23, 2023August 15, 2023 Master Builder 6202 Views

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

  • ← BrickJournal Issue 6 Volume 2 Page 43 – Concept 1
  • Seatron →

You May Also Like

T42

March 9, 2025March 22, 2025 Master Builder

6874 – Back A

November 6, 2023November 6, 2023 Master Builder

6821: Shovel Buggy (Geological Inspection)

February 17, 2026February 17, 2026 Master Builder

6970 – Inside D

January 20, 2021January 20, 2021 Master Builder

1195: Alien Encounter Polybag

August 5, 2023August 5, 2023 Master Builder

Blacktron II Prototypes

February 23, 2023February 11, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

6499: Time Tunnelator with Time Machine
Box Plus Different Box Versions Official Sets Playscape/Play Stage Box Small Builds Time Cruisers Time Cruisers Sets 

6499: Time Tunnelator with Time Machine

March 5, 2026March 5, 2026 Master Builder

Year Released: 1997BricklinkInstructions *This set is the same as 6495: Time Tunnelator NONE 🙁

2551: Grandma’s Kitchen
Duplo Duplo Sets Official Sets Playhouse Small Builds 

2551: Grandma’s Kitchen

February 27, 2023February 27, 2023 Master Builder
6571: Flame Fighters
Box Story Classic Town Fire Large Builds Official Sets Town Town Sets 

6571: Flame Fighters

August 10, 2026August 10, 2026 Master Builder
2846: Indian Kayak
Indians Official Sets Very Small Builds Western Western Sets 

2846: Indian Kayak

October 10, 2023October 10, 2023 Master Builder
7260: Wookiee Catamaran
Episode III Large Builds Official Sets Star Wars Star Wars Sets 

7260: Wookiee Catamaran

March 1, 2023March 1, 2023 Master Builder
535: Basic Building Set Tote Pack
Basic Large Builds Official Sets Universal Building Set 

535: Basic Building Set Tote Pack

May 15, 2023May 16, 2023 Master Builder
6349: Vacation House
Building Classic Town Medium Builds Official Sets Town Town Sets 

6349: Vacation House

July 1, 2021July 12, 2021 Master Builder
6836: V-Wing Fighter
ABCs Official Sets Small Builds UFO UFO Sets 

6836: V-Wing Fighter

October 24, 2019March 22, 2025 Master Builder
6377: Delivery Center
Cargo Classic Town Large Builds Official Sets Town Town Sets 

6377: Delivery Center

May 22, 2026May 22, 2026 Master Builder
6268: Renegade Runner
Medium Builds Official Sets Pirates Pirates I Pirates Sets 

6268: Renegade Runner

April 9, 2020July 13, 2021 Master Builder
1843: Space/Castle Value Pack
Bonus/Value Packs Castle Castle Sets Official Sets Royal Knights Small Builds Space Spyrius Spyrius Sets 

1843: Space/Castle Value Pack

January 21, 2021September 13, 2023 Master Builder
6928: Uranium Search Vehicle
Classic Space Classic Space Sets Medium Builds Official Sets Space 

6928: Uranium Search Vehicle

January 12, 2021October 21, 2024 Master Builder
6150 (6159): Crystal Detector
ABCs Aquazone Aquazone Sets Hydronauts Official Sets Small Builds 

6150 (6159): Crystal Detector

February 23, 2023February 18, 2025 Master Builder
6709: Tribal Chief
Indians Official Sets Very Small Builds Western Western Sets 

6709: Tribal Chief

October 10, 2023October 10, 2023 Master Builder
6286: Skull’s Eye Schooner
Extra Large Builds Niels Milan Pedersen Official Sets Pirates Pirates I Pirates Sets 

6286: Skull’s Eye Schooner

February 8, 2022July 29, 2023 Master Builder
7725: Electric Passenger Train
12V Large Builds Official Sets Town Train Train Sets 

7725: Electric Passenger Train

December 29, 2021July 26, 2022 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.