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
Alternate Builds Black Knights Castle Castle Alternate Builds Medium Builds 

6057 – Back C

April 14, 2025April 14, 2025 Master Builder 5556 Views

From: 6057: Sea Serpent
Name: TBD
Submitted by: USER
Instructions:

  • ← 6057 – Back B
  • Pathfinder →

You May Also Like

4563 – Back B

June 23, 2026June 23, 2026 Master Builder

6332 – Back A

June 5, 2024June 5, 2024 Master Builder

6833 – Back B

April 11, 2020March 14, 2025 Master Builder

4705 – Back A

June 12, 2024June 17, 2024 Master Builder

6393 – Back C

June 28, 2022June 28, 2022 Master Builder

6071 – Back B

May 7, 2023May 8, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

6210: Jabba’s Sail Barge
Episode IV/V/VI Extra Large Builds Official Sets Star Wars Star Wars Sets 

6210: Jabba’s Sail Barge

February 1, 2024February 1, 2024 Master Builder

Year Released: 2006BricklinkInstructions

6492: Hypno Cruiser
Medium Builds Official Sets Time Cruisers Time Cruisers Sets 

6492: Hypno Cruiser

December 29, 2021March 20, 2025 Master Builder
5550: Custom Rally Van
Extra Large Builds Model Team Model Team Sets Official Sets 

5550: Custom Rally Van

February 9, 2026March 4, 2026 Master Builder
1843 – Side L
Bonus/Value Pack Alternate Builds Castle Castle Alternate Builds Instructions Added Official Sets Royal Knights Small Alt Build Small Builds Space Spyrius Spyrius Alternate Builds 

1843 – Side L

January 22, 2021March 14, 2025 Master Builder
132: Cottage
Box Story Fabuland Fabuland Sets Medium Builds Official Sets 

132: Cottage

March 1, 2023April 3, 2024 Master Builder
4563: Load N’ Haul Railroad
9V Extra Large Builds Official Sets Town Train Train Sets 

4563: Load N’ Haul Railroad

July 26, 2022June 23, 2026 Master Builder
6085: Black Monarch’s Castle
Black Knights Castle Castle Sets Extra Large Builds Niels Milan Pedersen Official Sets 

6085: Black Monarch’s Castle

July 13, 2021July 29, 2023 Master Builder
6276: Eldorado Fortress
Box Story Daniel August Krentz Extra Large Builds Imperial Soldiers Niels Milan Pedersen Official Sets Pirates Pirates I Pirates Sets 

6276: Eldorado Fortress

January 28, 2022April 3, 2024 Master Builder
6075-1: Wolfpack Tower
Castle Castle Sets Duplicate Set Number Large Builds Official Sets Wolfpack 

6075-1: Wolfpack Tower

October 11, 2021March 11, 2024 Master Builder
6380: Emergency Treatment Center (St. Mary’s Hospital)
Classic Town Hospital Large Builds Official Sets Town Town Sets 

6380: Emergency Treatment Center (St. Mary’s Hospital)

July 15, 2022July 15, 2022 Master Builder
6645: Street Sweeper
Classic Town Official Sets Small Builds Town Town Sets Traffic 

6645: Street Sweeper

November 20, 2020November 20, 2020 Master Builder
4702: The Final Challenge
Harry Potter Harry Potter Sets Official Sets Small Builds Sorcerer's Stone 

4702: The Final Challenge

August 8, 2024August 8, 2024 Master Builder
6212: X-wing Fighter
Episode IV/V/VI Large Builds Official Sets Star Wars Star Wars Sets 

6212: X-wing Fighter

February 1, 2024February 1, 2024 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
1963: Basic Set with Storage Case
Basic Box Plus Large Builds Official Sets Storage Container Universal Building Set 

1963: Basic Set with Storage Case

October 9, 2024October 9, 2024 Master Builder
3051: Blaze Attack
Medium Builds Ninja Ninja Alternate Builds Ninja Official Sets Official Sets 

3051: Blaze Attack

October 26, 2026October 26, 2026 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.