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
    • 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

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

6833 – Back B

April 11, 2020March 14, 2025 Master Builder
1818 – Back A
Airport Alternate Builds Classic Town Medium Builds Town Town Alternate Builds 

1818 – Back A

April 7, 2025April 7, 2025 Master Builder
6250 – Back A
Alternate Builds Medium Builds Pirates Pirates Alternate Builds Pirates I 

6250 – Back A

February 20, 2025February 20, 2025 Master Builder
5986 – Back D
Adventurers Adventurers Alternate Builds Alternate Builds Extra Large Builds Jungle 

5986 – Back D

October 29, 2019April 4, 2020 Master Builder
6273 – Back C
Alternate Builds Instructions Added Large Alt Build Large Builds Pirates Pirates Alternate Builds Pirates I 

6273 – Back C

August 31, 2024September 6, 2024 Master Builder
6010 – Back C
Alternate Builds Castle Castle Alternate Builds Lion Knights Small Builds 

6010 – Back C

July 13, 2021July 13, 2021 Master Builder
891 – Back B
Alternate Builds Classic Space Classic Space Alternate Builds Small Builds Space 

891 – Back B

March 15, 2024March 15, 2024 Master Builder

NEW INSTRUCTIONS ADDED!View All

  • 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

  • 7779 – Instructions B
    Alternate Builds Batman I BATMAN™ BATMAN™ Alternate Builds Instructions Added Medium Alt Build Small Alt Build Small Builds 

    7779 – Instructions B

  • 7779 – Instructions A
    Alternate Builds Batman I BATMAN™ BATMAN™ Alternate Builds Instructions Added Small Alt Build Small Builds 

    7779 – Instructions A

6900 – Back B6900 – Back B6348 – Back E6348 – Back E6348 – Back D6348 – Back D7779 – Instructions B7779 – Instructions B7779 – Instructions A7779 – Instructions A

NEW OFFICIAL SETS ADDED!View All

6348: Surveillance Squad
Classic Town Large Builds Official Sets Police Town Town Sets 

6348: Surveillance Squad

June 23, 2026June 23, 2026 Master Builder

Year Released: 1994BricklinkInstructions

6579: Ice Surfer
Arctic Medium Builds Official Sets Town Town Sets 

6579: Ice Surfer

May 22, 2026May 22, 2026 Master Builder

Year Released: 2000BricklinkInstructions

6573: Arctic Expedition
Arctic Medium Builds Official Sets Town Town Sets 

6573: Arctic Expedition

May 22, 2026May 22, 2026 Master Builder

Year Released: 2000BricklinkInstructions

NEW ALTERNATE BUILDS ADDED!View All

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

6900 – Back B

June 24, 2026June 25, 2026 Master Builder
6348 – Back F
Alternate Builds Classic Town Medium Builds Police Town Town Alternate Builds 

6348 – Back F

June 23, 2026June 23, 2026 Master Builder
6348 – Back E
Alternate Builds Classic Town Instructions Added Police Town Town Alternate Builds Very Small Alt Build Very Small Builds 

6348 – Back E

June 23, 2026June 23, 2026 Master Builder
6348 – Back D
Alternate Builds Classic Town Instructions Added Medium Alt Build Medium Builds Police Town Town Alternate Builds 

6348 – Back D

June 23, 2026June 23, 2026 Master Builder
6348 – Back C
Alternate Builds Classic Town Medium Builds Police Town Town Alternate Builds 

6348 – Back C

June 23, 2026June 23, 2026 Master Builder
6348 – Back B
Alternate Builds Classic Town Medium Builds Police Town Town Alternate Builds 

6348 – Back B

June 23, 2026June 23, 2026 Master Builder
6348 – Back A
Alternate Builds Classic Town Medium Builds Police Town Town Alternate Builds 

6348 – Back A

June 23, 2026June 23, 2026 Master Builder
4563 – Back B
Alternate Builds Large Builds Train Train Alternate Builds 

4563 – Back B

June 23, 2026June 23, 2026 Master Builder
4563 – Inside A
Alternate Builds Large Builds Train Train Alternate Builds 

4563 – Inside A

June 23, 2026June 23, 2026 Master Builder
7779 – Instructions B
Alternate Builds Batman I BATMAN™ BATMAN™ Alternate Builds Instructions Added Medium Alt Build Small Alt Build Small Builds 

7779 – Instructions B

June 22, 2026June 25, 2026 Master Builder

STAR WARSView All

7161 – Back C
Alternate Builds Instructions Added Large Alt Build Large Builds Star Wars Star Wars Alternate Builds 

7161 – Back C

April 21, 2026April 21, 2026 Master Builder

From: 7161: Gungan SubName: Underwater Robot Instructions: View PDF | Download .io File

HARRY POTTERView All

4714 – Back A
Alternate Builds Harry Potter Harry Potter Alternate Builds Small Builds Sorcerer's Stone 

4714 – Back A

March 2, 2023March 2, 2023 Master Builder

From: 4714: Gringott’s BankName: TBDSubmitted by: USERInstructions:

INSTRUCTIONS ADDEDView All

6989 – Back C
Alternate Builds Extra Large Alt Build Extra Large Builds Instructions Added M:Tron M:Tron Alternate Builds 

6989 – Back C

7124 – Back A
Alternate Builds Instructions Added Small Alt Build Small Builds Star Wars Star Wars Alternate Builds 

7124 – Back A

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

6828 – Back C

6256 – Back C
Alternate Builds Instructions Added Islanders Pirates Pirates Alternate Builds Pirates I Small Alt Build Small Builds 

6256 – Back C

920 – Back F
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Medium Alt Build Medium Builds Space 

920 – Back F

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

6716 – Back B

6901 – Back D
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Medium Alt Build Medium Builds Space 

6901 – Back D

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

6877 – Back B

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

6829 – Back A

6367 – Back D
Alternate Builds Cargo Classic Town Instructions Added Small Alt Build Small Builds Town Town Alternate Builds 

6367 – Back D

6957 – Back C
ABCs Alternate Builds Instructions Added Medium Alt Build Medium Builds Space Space Police II Space Police II Alternate Builds 

6957 – Back C

Book 250 – Page 32-33
Classic Space Classic Space Alternate Builds Idea Book Instructions Added Medium Alt Build Space 

Book 250 – Page 32-33

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

7725 – Inside B

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

6985 – Back B

6981 – Back B
Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Large Alt Build Large Builds Space 

6981 – Back B

6357 – Back B
Alternate Builds Classic Town Instructions Added Small Alt Build Small Builds Town Town Alternate Builds Traffic 

6357 – Back B

6854 – Back C
Alternate Builds Exploriens Exploriens Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6854 – Back C

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

607 – Back A

6694 – Back D
Alternate Builds Classic Town Instructions Added Small Alt Build Small Builds Town Town Alternate Builds Traffic 

6694 – Back D

7140 – Instructions 2
Alternate Builds Instructions Added Medium Alt Build Medium Builds Star Wars Star Wars Alternate Builds 

7140 – Instructions 2

6360 – Back D
Alternate Builds Building Classic Town Instructions Added Small Alt Build Small Builds Town Town Alternate Builds 

6360 – Back D

6135 – Back B
Alternate Builds Aquashark Aquazone Aquazone Alternate Builds Instructions Added Very Small Alt Build Very Small Builds 

6135 – Back B

6932 – Back A
Alternate Builds Futuron Futuron Alternate Builds Instructions Added Medium Alt Build Medium Builds Space 

6932 – Back A

6848 – Back A
Alternate Builds Duplicate Alternate Number Futuron Futuron Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6848 – Back A

6360 – Back C
Alternate Builds Building Classic Town Instructions Added Medium Alt Build Medium Builds Town Town Alternate Builds 

6360 – Back C

Book 6000 – Page 76-77
Castle Castle Alternate Builds Idea Book Instructions Added Small Alt Build 

Book 6000 – Page 76-77

6546 – Back B
Alternate Builds Instructions Added Town Town Alternate Builds Very Small Alt Build Very Small Builds 

6546 – Back B

6804 – Back A
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Very Small Alt Build Very Small Builds 

6804 – Back A

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

924 – Back D

6871 – Back B
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6871 – Back B

7186 – Instructions 4
Alternate Builds Episode I Instructions Added Medium Alt Build Medium Builds Star Wars Star Wars Alternate Builds 

7186 – Instructions 4

6340 – Back D
Alternate Builds Classic Town Fire Instructions Added Small Alt Build Small Builds Town Town Alternate Builds 

6340 – Back D

6668 – Back B
Alternate Builds Classic Town Instructions Added Small Alt Build Small Builds Town Town Alternate Builds Traffic 

6668 – Back B

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

607 – Back B

6826 – Back C
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Space Very Small Alt Build Very Small Builds 

6826 – Back C

6234 – Back A
Alternate Builds Instructions Added Pirates Pirates Alternate Builds Pirates I Very Small Alt Build Very Small Builds 

6234 – Back A

Book 6000 – Page 56-57
Classic Space Classic Space Alternate Builds Idea Book Instructions Added Large Alt Build Space 

Book 6000 – Page 56-57

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

6890 – Back C

6270 – Back D
Alternate Builds Instructions Added Medium Alt Build Medium Builds Pirates Pirates Alternate Builds Pirates I 

6270 – Back D

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

1680 – Back B

720 – Inside C
Alternate Builds Basic Instructions Added LEGOLAND Alternate Builds Medium Alt Build Medium Builds Universal Building Set Universal Building Set Alternate Builds 

720 – Inside C

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

6878 – Back A

6394 – Back D
Alternate Builds Classic Town Gas Station Instructions Added Large Alt Build Large Builds Town Town Alternate Builds 

6394 – Back D

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

894 – Back C

6244 – Back B
Alternate Builds Imperial Armada Instructions Added Pirates Pirates Alternate Builds Small Alt Build Small Builds 

6244 – Back B

6883 – Back D
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Small Alt Build Small Builds 

6883 – Back D

6481 – Back D
Alternate Builds Classic Town Construction Instructions Added Medium Alt Build Medium Builds Town Town Alternate Builds 

6481 – Back D

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

6356 – Back C

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

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

671 – Back A

6844 – Back B
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6844 – Back B

6067 – Inside B
Alternate Builds Castle Castle Alternate Builds Instructions Added Large Alt Build Large Builds Lion Knights 

6067 – Inside B

6257 – Back B
Alternate Builds Instructions Added Pirates Pirates Alternate Builds Pirates I Small Alt Build Small Builds 

6257 – Back B

6390 – Back G
Alternate Builds Classic Town Extra Large Alt Build Extra Large Builds Instructions Added Town Town Alternate Builds Traffic 

6390 – Back G

BrickJournal Issue 6 Volume 2 Page 40 – Proto 3
ABCs Concepts and Prototypes Instructions Added M:Tron M:Tron Alternate Builds Small Alt Build Small Builds Space 

BrickJournal Issue 6 Volume 2 Page 40 – Proto 3

6781 – Back B
Alternate Builds Instructions Added Medium Alt Build Medium Builds Space Space Police I Space Police I Alternate Builds 

6781 – Back B

6357 – Back E
Alternate Builds Classic Town Instructions Added Small Alt Build Small Builds Town Town Alternate Builds Traffic 

6357 – Back E

6077-2 – Inside A
Alternate Builds Castle Castle Alternate Builds Instructions Added Large Alt Build Large Builds 

6077-2 – Inside A

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

6613 – Back A

6832 – Back C
Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Space Very Small Alt Build Very Small Builds 

6832 – Back C

6480 – Back B
Alternate Builds Classic Town Fire Instructions Added Medium Alt Build Medium Builds Town Town Alternate Builds 

6480 – Back B

6981 – Back A
Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Large Alt Build Large Builds 

6981 – Back A

6012 – Back A
Alternate Builds Castle Castle Alternate Builds Instructions Added Lion Knights Very Small Alt Build Very Small Builds 

6012 – Back A

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

6361 – Back C

6889 – Back C
Alternate Builds Instructions Added Medium Alt Build Medium Builds Space Spyrius Spyrius Alternate Builds 

6889 – Back C

6746 – Back A
Alternate Builds Indians Instructions Added Small Alt Build Small Builds Western Western Alternate Builds 

6746 – Back A

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

6054 – Back B

6061 – Back A
Alternate Builds Castle Castle Alternate Builds Instructions Added Lion Knights Medium Alt Build Medium Builds 

6061 – Back A

6897 – Back B
Alternate Builds Instructions Added Medium Alt Build Medium Builds Space Space Police II Space Police II Alternate Builds 

6897 – Back B

7151 – Instructions 4
Alternate Builds Episode I Instructions Added Medium Alt Build Medium Builds Star Wars Star Wars Alternate Builds 

7151 – Instructions 4

7180 – Instructions 4
Alternate Builds Alternate Instructions Included Episode IV/V/VI Instructions Added Medium Alt Build Medium Builds Star Wars Star Wars Alternate Builds 

7180 – Instructions 4

6086 – Back B
Alternate Builds Black Knights Castle Castle Alternate Builds Extra Large Alt Build Extra Large Builds Instructions Added 

6086 – Back B

6264 – Back D
Alternate Builds Instructions Added Islanders Medium Alt Build Medium Builds Pirates Pirates Alternate Builds Pirates I 

6264 – Back D

6027 – Back B
Alternate Builds Castle Castle Alternate Builds Fright Knights Instructions Added Small Alt Build Small Builds 

6027 – Back B

6357 – Back D
Alternate Builds Classic Town Instructions Added Small Alt Build Small Builds Town Town Alternate Builds Traffic 

6357 – Back D

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

6440 – Back C

6080 – Back C
Alternate Builds Castle Castle Alternate Builds Extra Large Alt Build Extra Large Builds Instructions Added 

6080 – Back C

6957 – Back D
Alternate Builds Instructions Added Medium Alt Build Medium Builds Space Space Police II Space Police II Alternate Builds 

6957 – Back D

5510 – Back A
Alternate Builds Instructions Added Large Alt Build Large Builds Model Team Model Team Alternate Builds 

5510 – Back A

6358 – Back D
Alternate Builds Classic Town Fire Instructions Added Medium Alt Build Medium Builds Town Town Alternate Builds 

6358 – Back D

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

6373 – Back B

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

6833 – Back C

Book 200 – Page 46-47
Castle Castle Alternate Builds Idea Book Instructions Added Small Alt Build Small Builds 

Book 200 – Page 46-47

Book 260 – Page 14-15
Alternate Instructions Included Basic Basic Alternate Builds Classic Town Idea Book Instructions Added Town 

Book 260 – Page 14-15

535 – Back A
Alternate Builds Basic Instructions Added LEGOLAND Alternate Builds Medium Alt Build Medium Builds Universal Building Set Universal Building Set Alternate Builds 

535 – 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

1526 – Back B
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Small Alt Build Small Builds Space 

1526 – Back B

6484 – Back C
Alternate Builds Classic Town Instructions Added Medium Alt Build Medium Builds Race Town Town Alternate Builds 

6484 – Back C

6887 – Back D
Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6887 – Back D

6667 – Back C
Alternate Builds Classic Town Instructions Added Small Alt Build Small Builds Town Town Alternate Builds Traffic 

6667 – Back C

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

6356 – Back B

6056 – Back A
Alternate Builds Castle Castle Alternate Builds Dragon Knights Instructions Added Small Alt Build Small Builds 

6056 – Back A

6265 – Back A
Alternate Builds Imperial Soldiers Instructions Added Pirates Pirates Alternate Builds Pirates I Small Builds 

6265 – Back A

6533 – Back B
Alternate Builds Classic Town Instructions Added Police Small Alt Build Small Builds Town Town Alternate Builds 

6533 – Back B

6340 – Back C
Alternate Builds Classic Town Fire Instructions Added Small Alt Build Small Builds Town Town Alternate Builds 

6340 – Back C

6040 – Back C
Alternate Builds Castle Castle Alternate Builds Instructions Added Lion Knights Small Alt Build Small Builds 

6040 – Back C

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

2153 – Back B

4708 – Instructions A
Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Small Alt Build Small Builds Sorcerer's Stone 

4708 – Instructions A

6951 – Back C
Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Large Alt Build Large Builds Space 

6951 – Back C

Book 6000 – Page 26-27
Classic Town Idea Book Instructions Added Medium Alt Build Town 

Book 6000 – Page 26-27

EXPLORE MORE OFFICIAL SETS

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

Year Released: 1991BricklinkInstructions

2846: Indian Kayak
Indians Official Sets Very Small Builds Western Western Sets 

2846: Indian Kayak

October 10, 2023October 10, 2023 Master Builder
6716: Weapons Wagon
Cowboys Jørn Thomsen Official Sets Small Builds Western Western Sets 

6716: Weapons Wagon

April 2, 2022July 29, 2023 Master Builder
6484: F1 Hauler
Classic Town Large Builds Official Sets Race Town Town Sets 

6484: F1 Hauler

March 21, 2023March 21, 2023 Master Builder
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

January 22, 2021March 14, 2025 Master Builder
6806: Surface Hopper
Classic Space Classic Space Sets Official Sets Space Very Small Builds 

6806: Surface Hopper

April 16, 2021April 16, 2021 Master Builder
6039: Twin Arm Launcher
Castle Castle Sets Lion Knights Official Sets Small Builds 

6039: Twin Arm Launcher

April 10, 2021April 10, 2021 Master Builder
4741: Blacktron Super Vehicle Value 3-Pack 
Blacktron II Blacktron II Alternate Builds Blacktron II Sets Bonus/Value Pack Sets Bonus/Value Packs Large Builds Official Sets Space Super Model 

4741: Blacktron Super Vehicle Value 3-Pack 

February 19, 2026February 20, 2026 Master Builder
1704: {Unknown – Ice Planet Satellite Plow ?}
Bonus/Value Pack Sets Classic Town Fire Ice Planet 2002 Ice Planet 2002 Sets Official Sets Small Builds Space Town 

1704: {Unknown – Ice Planet Satellite Plow ?}

September 6, 2023September 7, 2023 Master Builder
4593: Zero Hurricane & Red Blizzard
Drome Racers Official Sets Racers Small Builds 

4593: Zero Hurricane & Red Blizzard

January 27, 2025February 21, 2025 Master Builder
6646: Screaming Patriot
Classic Town Official Sets Race Small Builds Town Town Sets 

6646: Screaming Patriot

March 16, 2022March 16, 2022 Master Builder
4735: Slytherin
Chamber of Secrets Harry Potter Harry Potter Sets Official Sets Small Builds 

4735: Slytherin

February 27, 2023February 27, 2023 Master Builder
2146: FreeStyle with Storage Case
Box Plus Extra Large Builds FreeStyle FreeStyle Official Sets Official Sets Poster Storage Container 

2146: FreeStyle with Storage Case

December 15, 2025December 15, 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
6815: Hovertron
Exploriens Exploriens Sets Official Sets Space Very Small Builds 

6815: Hovertron

June 28, 2022June 28, 2022 Master Builder
6983: Ice Station Odyssey
Box Story Ice Planet 2002 Ice Planet 2002 Sets Jørn Thomsen Large Builds Official Sets Space 

6983: Ice Station Odyssey

November 9, 2019March 20, 2025 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
  • 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.