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
Large Builds Model Team Model Team Sets Official Sets 

5521: Sea Jet

January 12, 2021January 31, 2026 Master Builder 6451 Views

Year Released: 1993
Bricklink
Instructions

Back A
  • ← 6928 – Back D
  • 7115: Gungan Patrol →

You May Also Like

7161 – Back C

April 21, 2026April 21, 2026 Master Builder

6010: Supply Wagon

July 13, 2021July 13, 2021 Master Builder

6276: Eldorado Fortress

January 28, 2022April 3, 2024 Master Builder

6825: Cosmic Comet

September 12, 2019March 18, 2024 Master Builder

2846: Indian Kayak

October 10, 2023October 10, 2023 Master Builder

2333: Animal

May 16, 2023May 16, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

6822: Space Digger
Classic Space Classic Space Sets Official Sets Small Builds Space 

6822: Space Digger

March 12, 2024March 12, 2024 Master Builder

Year Released: 1981BricklinkInstructions

6059: Knight’s Stronghold
Black Knights Castle Castle Sets Medium Builds Official Sets 

6059: Knight’s Stronghold

July 13, 2021July 13, 2021 Master Builder
6903: Bug Blaster
Insectoids Insectoids Sets Official Sets Space Very Small Builds 

6903: Bug Blaster

October 4, 2024October 4, 2024 Master Builder
6769: Fort Legoredo
Extra Large Builds Jørn Thomsen Official Sets Western Western Sets 

6769: Fort Legoredo

November 10, 2019July 29, 2023 Master Builder
6989: Mega Core Magnetizer (Multi Core Magentizer)
Box Marketing Blurb Extra Large Builds Jørn Thomsen M:Tron M:Tron Sets Official Sets 

6989: Mega Core Magnetizer (Multi Core Magentizer)

September 15, 2019February 18, 2026 Master Builder
6036: Skeleton Surprise
Castle Castle Sets Official Sets Royal Knights Small Builds 

6036: Skeleton Surprise

February 28, 2023February 28, 2023 Master Builder
6332: Command Post Central
Large Builds LL Link Official Sets Police Town Town Jr Town Sets 

6332: Command Post Central

June 4, 2024July 11, 2024 Master Builder
6479: Emergency Response Center
Extra Large Builds Official Sets Res-Q Town Town Sets 

6479: Emergency Response Center

April 16, 2021January 20, 2022 Master Builder
4525: Road and Rail Repair
9V Official Sets Small Builds Town Train Train Sets 

4525: Road and Rail Repair

July 22, 2026July 22, 2026 Master Builder
6878: Sub Orbital Guardian
ABCs Bjarne Tveskov Blacktron II Blacktron II Sets Official Sets Small Builds 

6878: Sub Orbital Guardian

October 4, 2019August 14, 2023 Master Builder
6592: Vacation Hideaway (Weekend Cottage)
Building Classic Town Official Sets Small Builds Town Town Sets 

6592: Vacation Hideaway (Weekend Cottage)

June 23, 2025June 23, 2025 Master Builder
6980: Galaxy Commander
Classic Space Classic Space Sets Extra Large Builds Official Sets Space 

6980: Galaxy Commander

July 21, 2021July 21, 2021 Master Builder
7180: B-wing at Rebel Control Center
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
6545: Search N’ Rescue
Classic Town Large Builds Official Sets Police Town Town Sets 

6545: Search N’ Rescue

June 2, 2022June 2, 2022 Master Builder
4856: Doc Ock’s Hideout
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
4707: Hagrid’s Hut
Harry Potter Harry Potter Sets Large Builds Official Sets Sorcerer's Stone 

4707: Hagrid’s Hut

December 29, 2021December 29, 2021 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.