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LEGO Alternate Builds!

  • SETS
    • Adventurers
    • Aquazone
    • 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
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    • 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

Alternate Builds Instructions Added Large Alt Build Large Builds UFO UFO Alternate Builds 

6975 – Back B

June 25, 2025June 27, 2025 Master Builder 3419 Views

From: 6975: Alien AvengerName: Galactic Fight Starter Instructions: View PDF

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Alternate Builds Instructions Added Medium Alt Build Medium Builds Space UFO UFO Alternate Builds 

6900 – Back A

April 17, 2025April 21, 2025 Master Builder 2680 Views

From: 6900: Cyber SaucerName: Cyber Disruptor Instructions: View PDF ( Photo Sequence)

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ABCs LEGO Magazine Space UFO UFO Alternate Builds You Can Build This 

Ultimate Alien

March 22, 2025March 22, 2025 Master Builder 4951 Views

MiscBuild: Ultimate AlienSubmitted By: USERInstructions: *Alternate Build Connection: 6900: Cyber Saucer LEGO Mania Magazine: January-February 1998 – Page 5US LEGO

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ABCs LEGO Magazine Space UFO UFO Alternate Builds You Can Build This 

Alien Planet Cruiser II

March 22, 2025March 22, 2025 Master Builder 4901 Views

MiscBuild: Alien Planet Cruiser IISubmitted By: USERInstructions: *Alternate Build Connection: 6836: V-Wing Fighter, 6829: Radon Rover LEGO Mania Magazine: November-December

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Alternate Builds Space UFO UFO Alternate Builds Very Small Builds 

6800 – Back C

October 4, 2024October 4, 2024 Master Builder 2514 Views

From: 6800: Cyber BlasterName: TBDSubmitted by: USERInstructions

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Alternate Builds Space UFO UFO Alternate Builds Very Small Builds 

6800 – Back B

October 4, 2024October 4, 2024 Master Builder 2566 Views

From: 6800: Cyber BlasterName: TBDSubmitted by: USERInstructions

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Alternate Builds Space UFO UFO Alternate Builds Very Small Builds 

6800 – Back A

October 4, 2024October 4, 2024 Master Builder 2483 Views

From: 6800: Cyber BlasterName: TBDSubmitted by: USERInstructions

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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 5791 Views

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

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Alternate Builds Large Builds Space UFO UFO Alternate Builds 

6900 – Back B

October 2, 2024October 2, 2024 Master Builder 2566 Views

From: 6900: Cyber SaucerName: TBDSubmitted by: USERInstructions

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ABCs Large Builds Official Sets Space UFO UFO Sets 

6900: Cyber Saucer

October 2, 2024March 22, 2025 Master Builder 5995 Views

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

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Alternate Builds Instructions Added Small Alt Build Small Builds UFO UFO Alternate Builds 

6836 – Back B

July 12, 2024July 13, 2024 Master Builder 2206 Views

From: 6836: V-Wing FighterName: V-Wing Sonar Instructions: View PDF

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Alternate Builds Instructions Added Small Alt Build Small Builds UFO UFO Alternate Builds 

6836 – Back A

July 12, 2024July 13, 2024 Master Builder 2154 Views

From: 6836: V-Wing FighterName: Sonar Fighter Instructions: View PDF

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Alternate Builds Instructions Added Small Builds Space UFO UFO Alternate Builds Very Small Alt Build 

6818 – Back B

August 4, 2023August 6, 2023 Master Builder 2403 Views

From: 6818: Cyborg ScoutName: Cyborg Swoop Instructions: View PDF

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Alternate Builds Instructions Added Small Builds Space UFO UFO Alternate Builds Very Small Alt Build 

6818 – Back C

August 4, 2023August 6, 2023 Master Builder 2187 Views

From: 6818: Cyborg ScoutName: Cyborg Explorer Instructions: View PDF

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Alternate Builds Instructions Added Small Builds Space UFO UFO Alternate Builds Very Small Alt Build 

6818 – Back A

August 4, 2023August 6, 2023 Master Builder 2423 Views

From: 6818: Cyborg ScoutName: Cyborg Borg Instructions: View PDF

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Alternate Builds Instructions Added Small Alt Build Small Builds Space UFO UFO Alternate Builds 

6829 – Back B

April 14, 2023April 17, 2024 Master Builder 3627 Views

From: 6829: Radon RoverName: Radon Scouter Instructions: View PDF Improved Instructions: View PDF

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Alternate Builds Instructions Added Small Builds Space UFO UFO Alternate Builds 

6829 – Back C

April 14, 2023April 17, 2024 Master Builder 3132 Views

From: 6829: Radon RoverName: Radon Roamer Instructions: View PDF Improved Instructions: View PDF

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Alternate Builds Instructions Added Small Alt Build Small Builds Space UFO UFO Alternate Builds 

6829 – Back A

April 14, 2023April 17, 2024 Master Builder 3193 Views

From: 6829: Radon RoverName: Radon Hover Instructions: View PDF Improved Instructions: View PDF

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Official Sets Small Builds Space UFO UFO Sets 

6818: Cyborg Scout

July 18, 2022July 18, 2022 Master Builder 3716 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 4539 Views

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

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Alternate Builds Large Builds UFO UFO Alternate Builds 

6915 – Back C

November 9, 2019November 9, 2019 Master Builder 3363 Views

From: 6915: Warp Wing FighterName: TBDSubmitted by: USERInstructions

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Alternate Builds Large Builds UFO UFO Alternate Builds 

6915 – Back B

November 9, 2019November 9, 2019 Master Builder 2676 Views

From: 6915: Warp Wing FighterName: TBDSubmitted by: USERInstructions

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Alternate Builds Large Builds UFO UFO Alternate Builds 

6915 – Back A

November 9, 2019November 9, 2019 Master Builder 2512 Views

From: 6915: Warp Wing FighterName: TBDSubmitted by: USERInstructions

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Large Builds Official Sets UFO UFO Sets 

6915: Warp Wing Fighter

November 9, 2019November 9, 2019 Master Builder 6093 Views

Year Released: 1997Bricklink

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Alternate Builds Large Builds UFO UFO Alternate Builds 

6975 – Back A

November 9, 2019November 9, 2019 Master Builder 2886 Views

From: 6975: Alien AvengerName: TBDSubmitted by: USERInstructions

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Large Builds Official Sets UFO UFO Sets 

6975: Alien Avenger

November 9, 2019November 9, 2019 Master Builder 6151 Views

Year Released: 1997Bricklink

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ABCs Official Sets Small Builds UFO UFO Sets 

6836: V-Wing Fighter

October 24, 2019March 22, 2025 Master Builder 3739 Views

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

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EXPLORE MORE OFFICIAL SETS

1665: Duel FX Racers
Official Sets Small Builds Town Town Sets 

1665: Duel FX Racers

April 30, 2024April 30, 2024 Master Builder

Year Released: 1990BricklinkInstructions

891: Two-Man Scooter
Classic Space Classic Space Sets Official Sets Small Builds Space 

891: Two-Man Scooter

March 15, 2024March 15, 2024 Master Builder
4762: Rescue from the Merpeople
Goblet of Fire Harry Potter Harry Potter Sets Medium Builds Official Sets 

4762: Rescue from the Merpeople

May 16, 2023May 16, 2023 Master Builder
1702: Fire Fighter 4 x 4
Bonus/Value Pack Sets Classic Town Fire Ice Planet 2002 Ice Planet 2002 Sets Official Sets Small Builds Space Town 

1702: Fire Fighter 4 x 4

September 6, 2023September 7, 2023 Master Builder
6941: Battrax
Blacktron Blacktron Sets Large Builds Official Sets 

6941: Battrax

September 13, 2019September 28, 2019 Master Builder
4726: Quidditch Practice
Chamber of Secrets Harry Potter Harry Potter Sets Medium Builds Official Sets 

4726: Quidditch Practice

February 27, 2023February 27, 2023 Master Builder
6351: Surf N’ Sail Camper
Classic Town Medium Builds Official Sets Recreation Town Town Sets 

6351: Surf N’ Sail Camper

July 14, 2021July 14, 2021 Master Builder
1978-2: Town Value Pack
Bonus/Value Pack Sets Bonus/Value Packs Official Sets Race Small Builds Town 

1978-2: Town Value Pack

October 10, 2024October 10, 2024 Master Builder
6393: Big-Rig Truck Stop
Classic Town Extra Large Builds Official Sets Town Town Sets Traffic 

6393: Big-Rig Truck Stop

June 28, 2022June 28, 2022 Master Builder
6035: Castle Guard
Black Falcons Castle Castle Sets Official Sets Small Builds 

6035: Castle Guard

December 27, 2021December 27, 2021 Master Builder
2532: Aircraft and Ground Crew
Airport Classic Town Medium Builds Official Sets Town Town Sets 

2532: Aircraft and Ground Crew

December 28, 2021December 28, 2021 Master Builder
3067 (Kabaya: Town Space Port 2): Test Shuttle
Official Sets Space Port Town Very Small Builds 

3067 (Kabaya: Town Space Port 2): Test Shuttle

February 28, 2025February 28, 2025 Master Builder
6665: River Runners
Classic Town Official Sets Recreation Small Builds Town Town Sets 

6665: River Runners

June 1, 2022June 1, 2022 Master Builder
6899: Nebula Outpost
Exploriens Exploriens Sets Medium Builds Official Sets Space 

6899: Nebula Outpost

January 25, 2022September 13, 2024 Master Builder
6712: Sheriff’s Showdown
Cowboys Official Sets Very Small Builds Western Western Sets 

6712: Sheriff’s Showdown

October 10, 2023October 10, 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

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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
  • 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.

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