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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

UFO Sets

Box Plus Mask Medium Builds Official Sets UFO UFO Sets 

6999: Cyber Saucer with Promotional Mask

December 16, 2025December 16, 2025 Master Builder 7921 Views

Year Released: 1997Bricklink

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Duplicate Set Number Official Sets UFO UFO Sets Very Small Builds 

6901-2: Space Plane

December 16, 2025December 16, 2025 Master Builder 7949 Views

Year Released: 1998BricklinkInstructions

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Bonus/Value Pack Sets Bonus/Value Packs Exploriens Exploriens Sets Official Sets Small Builds Space UFO UFO Sets 

UFO Value Pack (VP-5)

December 10, 2025March 14, 2026 Master Builder 5553 Views

Year Released: 1997BricklinkContains Sets: 6829: Radon Rover, 6836: V-Wing Fighter, and 1858: Droid Scout

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Official Sets Space UFO UFO Sets Very Small Builds 

6800 (6816, Kabaya: Space 2): Cyber Blaster

October 4, 2024February 25, 2025 Master Builder 7424 Views

Year Released: 1997BricklinkInstructions *Kabaya: Space 2 is listed on Bricklink as 3012: Space Hover

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ABCs Large Builds Official Sets Space UFO UFO Sets 

6900: Cyber Saucer

October 2, 2024March 22, 2025 Master Builder 8328 Views

Year Released: 1997BricklinkInstructions *Alternate Build Connection: Ultimate Alien

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Official Sets Small Builds Space UFO UFO Sets 

6818: Cyborg Scout

July 18, 2022July 18, 2022 Master Builder 5770 Views

Year Released: 1997BricklinkInstructions

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ABCs Official Sets Small Builds Space UFO UFO Sets 

6829: Radon Rover

August 4, 2020March 22, 2025 Master Builder 6572 Views

Year Released: 1997InstructionsBricklink *Alternate Build Connection: Alien Planet Cruiser II

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Large Builds Official Sets UFO UFO Sets 

6915: Warp Wing Fighter

November 9, 2019November 9, 2019 Master Builder 8574 Views

Year Released: 1997Bricklink

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Large Builds Official Sets Space UFO UFO Sets 

6975: Alien Avenger

November 9, 2019July 21, 2025 Master Builder 8544 Views

Year Released: 1997BricklinkInstructions

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ABCs Official Sets Small Builds UFO UFO Sets 

6836: V-Wing Fighter

October 24, 2019March 22, 2025 Master Builder 6136 Views

Year Released: 1997BricklinkInstructions *Alternate Build Connection: Alien Planet Cruiser II

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EXPLORE MORE OFFICIAL SETS

6848: Interplanetary Shuttle
Classic Space Classic Space Sets Duplicate Set Number Official Sets Small Builds Space 

6848: Interplanetary Shuttle

March 11, 2024March 11, 2024 Master Builder

Year Released: 1985BricklinkInstructions

7725: Electric Passenger Train
12V Large Builds Official Sets Town Train Train Sets 

7725: Electric Passenger Train

December 29, 2021July 26, 2022 Master Builder
5935: Island Hopper
Adventurers Adventurers Sets Dino Island Medium Builds Official Sets 

5935: Island Hopper

April 21, 2025April 21, 2025 Master Builder
6801: Moon Buggy
Classic Space Classic Space Sets Official Sets Very Small Builds 

6801: Moon Buggy

September 22, 2019September 28, 2019 Master Builder
6856: Planetary Decoder
ABCs Exploriens Exploriens Sets Official Sets Small Builds Space 

6856: Planetary Decoder

April 16, 2021March 22, 2025 Master Builder
6923: Particle Ionizer
ABCs M:Tron M:Tron Sets Medium Builds Official Sets 

6923: Particle Ionizer

October 1, 2019August 13, 2023 Master Builder
6870: Space Probe Launcher
Classic Space Classic Space Sets Official Sets Small Builds Space 

6870: Space Probe Launcher

January 12, 2021January 12, 2021 Master Builder
6268: Renegade Runner
Medium Builds Official Sets Pirates Pirates I Pirates Sets 

6268: Renegade Runner

April 9, 2020July 13, 2021 Master Builder
6877: Vector Detector
ABCs M:Tron M:Tron Sets Official Sets Small Builds Space 

6877: Vector Detector

June 7, 2021October 14, 2024 Master Builder
6497: Twisted Time Train
Box Story Medium Builds Official Sets Time Cruisers Time Cruisers Sets 

6497: Twisted Time Train

March 17, 2025March 17, 2025 Master Builder
6492: Hypno Cruiser
Medium Builds Official Sets Time Cruisers Time Cruisers Sets 

6492: Hypno Cruiser

December 29, 2021March 20, 2025 Master Builder
6514: Trail Ranger
Classic Town Official Sets Recreation Small Builds Town Town Sets 

6514: Trail Ranger

May 10, 2022May 10, 2022 Master Builder
4720: Knockturn Alley
Chamber of Secrets Harry Potter Harry Potter Sets Medium Builds Official Sets 

4720: Knockturn Alley

July 9, 2024June 23, 2026 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
6885: Saturn Base Main Team (Crater Crawler)
Futron Sets Futuron Official Sets Small Builds Space 

6885: Saturn Base Main Team (Crater Crawler)

December 28, 2021December 28, 2021 Master Builder
6546: Slick Racer
Official Sets Town Town Sets Very Small Builds 

6546: Slick Racer

May 23, 2022May 23, 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.

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