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

BACK OF THE BOX BUILDS

1632 – Back A
Alternate Builds Classic Town Harbor Town Town Alternate Builds Very Small Builds 

1632 – Back A

July 25, 2024July 25, 2024 Master Builder
6236 – Back A
Alternate Builds Instructions Added Islanders Pirates Pirates Alternate Builds Pirates I Very Small Alt Build Very Small Builds 

6236 – Back A

May 18, 2022May 23, 2022 Master Builder
1895 – Back A
Alternate Builds Classic Town Police Small Builds Town Town Alternate Builds 

1895 – Back A

June 1, 2022June 1, 2022 Master Builder
1954 – Back A
Alternate Builds Instructions Added Space Spyrius Spyrius Alternate Builds Very Small Alt Build Very Small Builds 

1954 – Back A

January 26, 2022January 26, 2022 Master Builder
6392 – Back E
Airport Alternate Builds Classic Town Extra Large Builds Town Town Alternate Builds 

6392 – Back E

June 28, 2022June 28, 2022 Master Builder
6356 – Back A
Alternate Builds Classic Town Hospital Instructions Added Small Alt Build Small Builds Town Town Alternate Builds 

6356 – Back A

March 16, 2022March 16, 2022 Master Builder
4709 – Back A
Alternate Builds Extra Large Builds Harry Potter Harry Potter Alternate Builds Instructions Added Sorcerer's Stone 

4709 – Back A

June 12, 2024June 17, 2024 Master Builder

NEW INSTRUCTIONS ADDED!View All

  • Book 7777 – Page 66-67
    Idea Book Instructions Added Large Alt Build Large Builds Town Train 

    Book 7777 – Page 66-67

  • 4563 – Back A
    Alternate Builds Instructions Added Large Alt Build Large Builds Train Train Alternate Builds 

    4563 – Back A

  • 6900 – Back B
    Alternate Builds Instructions Added Medium Alt Build Medium Builds Space UFO UFO Alternate Builds 

    6900 – Back B

  • 6348 – Back E
    Alternate Builds Classic Town Instructions Added Police Town Town Alternate Builds Very Small Alt Build Very Small Builds 

    6348 – Back E

  • 6348 – Back D
    Alternate Builds Classic Town Instructions Added Medium Alt Build Medium Builds Police Town Town Alternate Builds 

    6348 – Back D

Book 7777 – Page 66-67Book 7777 – Page 66-674563 – Back A4563 – Back A6900 – Back B6900 – Back B6348 – Back E6348 – Back E6348 – Back D6348 – Back D

NEW OFFICIAL SETS ADDED!View All

1656: Evacuation Team
Classic Town Fire Large Builds Official Sets Town Town Sets 

1656: Evacuation Team

July 22, 2026July 22, 2026 Master Builder

Year Released: 1991BricklinkInstructions

4552: Cargo Crane
9V Large Builds Official Sets Town Train Train Sets 

4552: Cargo Crane

July 22, 2026July 22, 2026 Master Builder

Year Released: 1995InstructionsBricklink

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

Year Released: 1994InstructionsBricklink

NEW ALTERNATE BUILDS ADDED!View All

1656 – Back D
Alternate Builds Classic Town Fire Medium Builds Town Town Alternate Builds 

1656 – Back D

July 22, 2026July 22, 2026 Master Builder
1656 – Back C
Alternate Builds Classic Town Fire Medium Builds Town Town Alternate Builds 

1656 – Back C

July 22, 2026July 22, 2026 Master Builder
1656 – Back B
Alternate Builds Classic Town Fire Medium Builds Town Town Alternate Builds 

1656 – Back B

July 22, 2026July 22, 2026 Master Builder
1656 – Back A
Alternate Builds Classic Town Fire Medium Builds Town Town Alternate Builds 

1656 – Back A

July 22, 2026July 22, 2026 Master Builder
4552 – Back C
Alternate Builds Large Builds Train Train Alternate Builds 

4552 – Back C

July 22, 2026July 22, 2026 Master Builder
4552 – Back B
Alternate Builds Large Builds Train Train Alternate Builds 

4552 – Back B

July 22, 2026July 22, 2026 Master Builder
4552 – Back A
Alternate Builds Large Builds Train Train Alternate Builds 

4552 – Back A

July 22, 2026July 22, 2026 Master Builder
4525 – Back B
Alternate Builds Small Builds Train Train Alternate Builds 

4525 – Back B

July 22, 2026July 22, 2026 Master Builder
4525 – Back A
Alternate Builds Small Builds Train Train Alternate Builds 

4525 – Back A

July 22, 2026July 22, 2026 Master Builder
4536 – Back C
Alternate Builds Medium Builds Train Train Alternate Builds 

4536 – Back C

July 10, 2026July 10, 2026 Master Builder

STAR WARSView All

7258 – Back A
Alternate Builds Episode III Large Builds Star Wars Star Wars Alternate Builds 

7258 – Back A

March 1, 2023March 3, 2023 Master Builder

From: 7258: Wookiee AttackName: TBDSubmitted by: USERInstructions:

HARRY POTTERView All

4706 – Back B
Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Medium Builds Sorcerer's Stone 

4706 – Back B

June 12, 2024June 17, 2024 Master Builder

From: 4706: Forbidden CorridorName: Bridge Trap Instructions: View PDF | Download .io File

INSTRUCTIONS ADDEDView All

4883 – Instructions A
Alternate Builds Designer Sets Designer Sets Alternate Builds Instructions Added Small Alt Build Small Builds 

4883 – Instructions A

6356 – Back C
Alternate Builds Classic Town Hospital Instructions Added Medium Alt Build Medium Builds Town Town Alternate Builds 

6356 – Back C

6512 – Back B
Alternate Builds Classic Town Construction Instructions Added Small Alt Build Small Builds Town Town Alternate Builds 

6512 – Back B

6512 – Back A
Alternate Builds Classic Town Construction Instructions Added Small Alt Build Small Builds Town Town Alternate Builds 

6512 – Back A

6581 – Back E
Alternate Builds Classic Town Construction Instructions Added Small Alt Build Small Builds Town Town Alternate Builds 

6581 – Back E

6385 – Inside A
Alternate Builds Classic Town Fire Instructions Added Large Alt Build Large Builds Town Town Alternate Builds 

6385 – Inside A

6039 – Back C
Alternate Builds Castle Castle Alternate Builds Instructions Added Lion Knights Small Alt Build Small Builds 

6039 – Back C

6823 – Back B
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Very Small Alt Build Very Small Builds 

6823 – Back B

6512 – Back C
Alternate Builds Classic Town Construction Instructions Added Small Alt Build Small Builds Town Town Alternate Builds 

6512 – Back C

1954 – Back A
Alternate Builds Instructions Added Space Spyrius Spyrius Alternate Builds Very Small Alt Build Very Small Builds 

1954 – Back A

6542 – Back F
Alternate Builds Classic Town Harbor Instructions Added Large Alt Build Large Builds Town Town Alternate Builds 

6542 – Back F

Book 260 – Page 30-31
Alternate Instructions Included Castle Castle Alternate Builds Extra Large Alt Build Idea Book Instructions Added Large Alt Build Medium Alt Build 

Book 260 – Page 30-31

6087 – Back B
Alternate Builds Castle Castle Alternate Builds Fright Knights Instructions Added Large Alt Build Large Builds 

6087 – Back B

1736 – Back B
Alternate Builds Castle Castle Alternate Builds Dragon Knights Instructions Added Very Small Alt Build Very Small Builds 

1736 – Back B

6828 – Back C
Alternate Builds Futuron Futuron Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6828 – Back C

7121 – Back A
Alternate Builds Episode I Instructions Added Small Alt Build Small Builds Star Wars Star Wars Alternate Builds 

7121 – Back A

6831 – Back C
Alternate Builds Instructions Added Space Space Police I Space Police I Alternate Builds Very Small Alt Build Very Small Builds 

6831 – Back C

6348 – Back D
Alternate Builds Classic Town Instructions Added Medium Alt Build Medium Builds Police Town Town Alternate Builds 

6348 – Back D

6669 – Back C
Alternate Builds Classic Town Instructions Added Race Small Alt Build Small Builds Town Town Alternate Builds 

6669 – Back C

6346 – Back D
Airport Alternate Builds Classic Town Instructions Added Medium Alt Build Medium Builds Town Town Alternate Builds 

6346 – Back D

1732 – Back A
Alternate Builds Castle Castle Alternate Builds Dragon Knights Instructions Added Very Small Alt Build Very Small Builds 

1732 – Back A

7725 – Inside B
Alternate Builds Instructions Added Medium Alt Build Medium Builds Train Train Alternate Builds 

7725 – Inside B

6211 – Back B
Alternate Builds Episode IV/V/VI Instructions Added Large Alt Build Large Builds Star Wars Star Wars Alternate Builds 

6211 – Back B

6440 – Back B
Airport Alternate Builds Classic Town Instructions Added Small Alt Build Small Builds Town Town Alternate Builds 

6440 – Back B

1785 – Back B
Alternate Builds Instructions Added Small Alt Build Small Builds Space Spyrius Spyrius Alternate Builds Unitron Unitron Alternate Builds 

1785 – Back B

6506 – Back B
Alternate Builds Classic Town Instructions Added Police Town Town Alternate Builds Very Small Alt Build Very Small Builds 

6506 – Back B

6020 – Back A
Alternate Builds Castle Castle Alternate Builds Dragon Knights Instructions Added Small Alt Build Small Builds 

6020 – Back A

1793 – Back C
Alternate Builds Instructions Added Large Alt Build Large Builds Space Unitron Unitron Alternate Builds 

1793 – Back C

6985 – Inside B
Alternate Builds Classic Space Classic Space Alternate Builds Extra Large Alt Build Extra Large Builds Instructions Added Space 

6985 – Inside B

6021 – Back A
Alternate Builds Castle Castle Alternate Builds Instructions Added Very Small Alt Build Very Small Builds 

6021 – Back A

6880 – Back C
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6880 – Back C

6593 – Back B
Alternate Builds Classic Town Fire Instructions Added Small Alt Build Small Builds Town Town Alternate Builds 

6593 – Back B

897 – Back D
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Small Alt Build Small Builds Space 

897 – Back D

7043 – Back A
Alternate Builds Fire Instructions Added Small Alt Build Small Builds Town World City 

7043 – Back A

BrickJournal Issue 12 Page 77 – Proto 1
Concepts and Prototypes Instructions Added M:Tron M:Tron Alternate Builds Small Alt Build Small Builds Space 

BrickJournal Issue 12 Page 77 – Proto 1

6430 – Back A
Alternate Builds Classic Town Instructions Added Police Small Alt Build Small Builds Town Town Alternate Builds 

6430 – Back A

6716 – Back D
Alternate Builds Cowboys Instructions Added Very Small Alt Build Very Small Builds Western Western Alternate Builds 

6716 – Back D

1974-4 – Back B
Alternate Builds Bonus/Value Pack Alternate Builds Futuron Futuron Alternate Builds Instructions Added Space Very Small Alt Build Very Small Builds 

1974-4 – Back B

1875 – Back B
Alternate Builds Blacktron Blacktron Alternate Builds Bonus/Value Pack Alternate Builds Instructions Added Small Alt Build Small Builds Space 

1875 – Back B

2153 – Back B
Alternate Builds Instructions Added Medium Alt Build Medium Builds Robo Force Robo Force Alternate Builds Space 

2153 – Back B

6054 – Back B
Alternate Builds Castle Castle Alternate Builds Forestmen Instructions Added Medium Alt Build Medium Builds Royal Knights 

6054 – Back B

1680 – Back C
Alternate Builds Castle Castle Alternate Builds Forestmen Instructions Added Very Small Alt Build Very Small Builds 

1680 – Back C

6373 – Back B
Alternate Builds Classic Town Instructions Added Medium Alt Build Medium Builds Town Town Alternate Builds Traffic 

6373 – Back B

6899 – Back B
Alternate Builds Exploriens Exploriens Alternate Builds Instructions Added Medium Alt Build Medium Builds Space 

6899 – Back B

6940 – Back A
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Medium Alt Build Medium Builds 

6940 – Back A

671 – Back C
Alternate Builds Classic Town Gas Station Instructions Added Small Alt Build Small Builds Town Town Alternate Builds 

671 – Back C

735 – Back D
Alternate Builds Basic Instructions Added Large Alt Build Large Builds LEGOLAND Alternate Builds Universal Building Set Universal Building Set Alternate Builds 

735 – Back D

1843 – Bottom
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 – Bottom

6929 – Back B
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Medium Alt Build Medium Builds 

6929 – Back B

6877 – Back C
Alternate Builds Instructions Added M:Tron M:Tron Alternate Builds Small Alt Build Small Builds Space 

6877 – Back C

6062 – Back C
ABCs Alternate Builds Black Falcons Castle Castle Alternate Builds Instructions Added Small Alt Build Small Builds 

6062 – Back C

6361 – Back D
Alternate Builds Classic Town Construction Instructions Added Medium Alt Build Medium Builds Town Town Alternate Builds 

6361 – Back D

6973 – Back B
Alternate Builds Ice Planet 2002 Ice Planet 2002 Alternate Builds Instructions Added Large Alt Build Large Builds 

6973 – Back B

6267 – Back A
Alternate Builds Imperial Soldiers Instructions Added Medium Alt Build Medium Builds Pirates Pirates Alternate Builds Pirates I 

6267 – Back A

6030 – Back B
Alternate Builds Black Falcons Castle Castle Alternate Builds Instructions Added Small Alt Build Small Builds 

6030 – Back B

Book 7777 – Cover
Idea Book Instructions Added Race Town Train 

Book 7777 – Cover

Book 6000 – Page 4-5
Classic Town Idea Book Instructions Added Medium Alt Build Town 

Book 6000 – Page 4-5

6780 – Back C
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Medium Alt Build Medium Builds Space 

6780 – Back C

6825 – Back C
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Small Builds 

6825 – Back C

6356 – Back B
Alternate Builds Classic Town Hospital Instructions Added Small Alt Build Small Builds Town Town Alternate Builds 

6356 – Back B

6827 – Back C
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Space Very Small Alt Build Very Small Builds 

6827 – Back C

4706 – Back A
Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Medium Builds Sorcerer's Stone 

4706 – Back A

6046 – Back A
Alternate Builds Castle Castle Alternate Builds Dark Forest Instructions Added Medium Alt Build Medium Builds 

6046 – Back A

6890 – Back C
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Medium Alt Build Medium Builds Space 

6890 – Back C

4709 – Back B
Alternate Builds Extra Large Builds Harry Potter Harry Potter Alternate Builds Instructions Added Sorcerer's Stone 

4709 – Back B

6892 – Back B
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Medium Alt Build Medium Builds Space 

6892 – Back B

6664 – Back D
Alternate Builds Classic Town Instructions Added Police Small Alt Build Small Builds Town Town Alternate Builds 

6664 – Back D

6896 – Back B
Alternate Builds Instructions Added M:Tron M:Tron Alternate Builds Small Alt Build Small Builds Space 

6896 – Back B

6956 – Back C
Alternate Builds Instructions Added Large Alt Build Large Builds M:Tron M:Tron Alternate Builds Space 

6956 – Back C

6552 – Back F
Alternate Builds Classic Town Instructions Added Medium Builds Recreation Town Town Alternate Builds 

6552 – Back F

6833 – Back B
Alternate Builds Instructions Added M:Tron M:Tron Alternate Builds Space Very Small Alt Build Very Small Builds 

6833 – Back B

6529 – Back A
Airport Alternate Builds Classic Town Instructions Added Town Town Alternate Builds Very Small Alt Build Very Small Builds 

6529 – Back A

4707 – Back B
Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Medium Builds Sorcerer's Stone 

4707 – Back B

6341 – Back D
Airport Alternate Builds Classic Town Instructions Added Small Alt Build Small Builds Town Town Alternate Builds 

6341 – Back D

6235 – Back C
Alternate Builds Instructions Added Pirates Pirates Alternate Builds Pirates I Very Small Alt Build Very Small Builds 

6235 – Back C

6886 – Back B
Alternate Builds Instructions Added Medium Alt Build Medium Builds Space Space Police I Space Police I Alternate Builds 

6886 – Back B

6260 – Back B
Alternate Builds Instructions Added Pirates Pirates Alternate Builds Pirates I Small Alt Build Small Builds 

6260 – Back B

6930 – Inside B
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Medium Alt Build Medium Builds Space 

6930 – Inside B

6987 – Back B
ABCs Alternate Builds Blacktron Blacktron Alternate Builds Extra Large Alt Build Extra Large Builds Instructions Added Space 

6987 – Back B

6861 – Back B
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6861 – Back B

6581 – Back D
Alternate Builds Classic Town Construction Instructions Added Small Alt Build Small Builds Town Town Alternate Builds 

6581 – Back D

6022 – Back A
Alternate Builds Castle Castle Alternate Builds Instructions Added Very Small Alt Build Very Small Builds 

6022 – Back A

6613 – Back B
Alternate Builds Classic Town Instructions Added Town Town Alternate Builds Traffic Very Small Alt Build Very Small Builds 

6613 – Back B

6876 – Back C
ABCs Alternate Builds Blacktron Blacktron Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6876 – Back C

6829 – Back B
Alternate Builds Instructions Added Small Alt Build Small Builds Space UFO UFO Alternate Builds 

6829 – Back B

720 – Back E
Alternate Builds Basic Instructions Added LEGOLAND Alternate Builds Medium Alt Build Medium Builds Universal Building Set Universal Building Set Alternate Builds 

720 – Back E

6258 – Back A
Alternate Builds Instructions Added Pirates Pirates Alternate Builds Pirates I Small Alt Build Small Builds 

6258 – Back A

Book 6000 – Page 30-31
Classic Town Idea Book Instructions Added Town 

Book 6000 – Page 30-31

Book 6000 – Page 18-19
Classic Town Idea Book Instructions Added Medium Alt Build Town 

Book 6000 – Page 18-19

6542 – Back E
Alternate Builds Classic Town Harbor Instructions Added Medium Alt Build Medium Builds Town Town Alternate Builds 

6542 – Back E

Book 200 – Page 30-31
Alternate Instructions Included Classic Space Classic Space Alternate Builds Idea Book Instructions Added Space 

Book 200 – Page 30-31

6258 – Back B
Alternate Builds Instructions Added Pirates Pirates Alternate Builds Pirates I Small Alt Build Small Builds 

6258 – Back B

6929 – Back D
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Medium Alt Build Medium Builds 

6929 – Back D

6510 – Back A
Alternate Builds Instructions Added Race Town Town Alternate Builds Very Small Alt Build Very Small Builds 

6510 – Back A

6685 – Back A
Alternate Builds Classic Town Fire Instructions Added Small Alt Build Small Builds Town Town Alternate Builds 

6685 – Back A

6878 – Back B
Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6878 – Back B

924 – Back C
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Small Alt Build Small Builds Space 

924 – Back C

6938 – Back C
Alternate Builds Exploriens Exploriens Alternate Builds Instructions Added Medium Alt Build Medium Builds 

6938 – Back C

6939 – Back C
Alternate Builds Instructions Added Medium Alt Build Medium Builds Spyrius Spyrius Alternate Builds 

6939 – Back C

6856 – Back A
Alternate Builds Exploriens Exploriens Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6856 – Back A

EXPLORE MORE OFFICIAL SETS

6480: Hook and Ladder Truck
Classic Town Fire Medium Builds Official Sets Town Town Sets 

6480: Hook and Ladder Truck

July 8, 2022July 8, 2022 Master Builder

Year Released: 1986BricklinkInstructions

6022: Horse Cart
Castle Castle Sets Lion Knights Official Sets Very Small Builds 

6022: Horse Cart

October 19, 2019April 4, 2020 Master Builder
770: Rescue Set
Hospital LEGOLAND Medium Builds Official Sets 

770: Rescue Set

September 15, 2022February 14, 2024 Master Builder
6835: Saucer Scout
Jørn Thomsen Official Sets Small Builds Spyrius Spyrius Sets 

6835: Saucer Scout

November 9, 2019July 29, 2023 Master Builder
4708: Hogwarts Express
Harry Potter Harry Potter Sets Large Builds Official Sets Sorcerer's Stone 

4708: Hogwarts Express

July 13, 2021August 8, 2024 Master Builder
6474: Wheeled Front Shovel
Construction Official Sets Small Builds Town Town Jr Town Sets 

6474: Wheeled Front Shovel

August 2, 2020August 2, 2020 Master Builder
4706: Forbidden Corridor
Harry Potter Harry Potter Sets Large Builds Official Sets Sorcerer's Stone 

4706: Forbidden Corridor

February 27, 2023February 27, 2023 Master Builder
1974-3: Smuggler’s Hayride
Bonus/Value Pack Sets Castle Castle Sets Forestmen Official Sets Small Builds 

1974-3: Smuggler’s Hayride

September 7, 2023September 8, 2023 Master Builder
6265: Sabre Island
Imperial Soldiers Official Sets Pirates Pirates I Pirates Sets Small Builds 

6265: Sabre Island

May 28, 2024May 28, 2024 Master Builder
7783: The Batcave: The Penguin and Mr. Freeze’s Invasion
Batman I BATMAN™ BATMAN™ Sets Extra Large Builds Official Sets 

7783: The Batcave: The Penguin and Mr. Freeze’s Invasion

March 27, 2026March 27, 2026 Master Builder
6633: Family Car
Classic Town Official Sets Small Builds Town Town Sets Traffic 

6633: Family Car

April 19, 2021April 19, 2021 Master Builder
6467: Power Pitstop
Official Sets Race Small Builds Town Town Jr Town Sets 

6467: Power Pitstop

June 23, 2025June 23, 2025 Master Builder
6340: Hook & Ladder
Classic Town Fire Medium Builds Official Sets Town Town Sets 

6340: Hook & Ladder

December 29, 2021December 29, 2021 Master Builder
510: Basic Building Set
Basic Official Sets Small Builds Universal Building Set 

510: Basic Building Set

July 11, 2024July 11, 2024 Master Builder
6780: XT-Starship
ABCs Classic Space Classic Space Sets Medium Builds Official Sets Space 

6780: XT-Starship

October 12, 2021September 9, 2024 Master Builder
6685: Fire Copter 1
ABCs Classic Town Fire Official Sets Small Builds Town Town Sets 

6685: Fire Copter 1

October 13, 2021August 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.