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

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 7931 Views

Year Released: 1997Bricklink

Read more
Duplicate Set Number Official Sets UFO UFO Sets Very Small Builds 

6901-2: Space Plane

December 16, 2025December 16, 2025 Master Builder 7958 Views

Year Released: 1998BricklinkInstructions

Read more
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 5560 Views

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

Read more
Official Sets Space UFO UFO Sets Very Small Builds 

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

October 4, 2024February 25, 2025 Master Builder 7434 Views

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

Read more
ABCs Large Builds Official Sets Space UFO UFO Sets 

6900: Cyber Saucer

October 2, 2024March 22, 2025 Master Builder 8342 Views

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

Read more
Official Sets Small Builds Space UFO UFO Sets 

6818: Cyborg Scout

July 18, 2022July 18, 2022 Master Builder 5780 Views

Year Released: 1997BricklinkInstructions

Read more
ABCs Official Sets Small Builds Space UFO UFO Sets 

6829: Radon Rover

August 4, 2020March 22, 2025 Master Builder 6580 Views

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

Read more
Large Builds Official Sets UFO UFO Sets 

6915: Warp Wing Fighter

November 9, 2019November 9, 2019 Master Builder 8584 Views

Year Released: 1997Bricklink

Read more
Large Builds Official Sets Space UFO UFO Sets 

6975: Alien Avenger

November 9, 2019July 21, 2025 Master Builder 8555 Views

Year Released: 1997BricklinkInstructions

Read more
ABCs Official Sets Small Builds UFO UFO Sets 

6836: V-Wing Fighter

October 24, 2019March 22, 2025 Master Builder 6152 Views

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

Read more

EXPLORE MORE OFFICIAL SETS

1730: Snow Scooter
Classic Town Off-Road Official Sets Town Town Sets Very Small Builds 

1730: Snow Scooter

April 11, 2023April 11, 2023 Master Builder

Year Released: 1994InstructionsBricklink

6277: Imperial Trading Post
Extra Large Builds Imperial Guards Official Sets Pirates Pirates I Pirates Sets 

6277: Imperial Trading Post

January 6, 2022January 6, 2022 Master Builder
894: Mobile Ground Tracking Station
Classic Space Classic Space Sets Jens Nygaard Knudsen Official Sets Small Builds Space 

894: Mobile Ground Tracking Station

January 12, 2021July 29, 2023 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
6954: Renegade
ABCs Bjarne Tveskov Blacktron Blacktron Sets Large Builds Official Sets Space 

6954: Renegade

September 7, 2020October 16, 2024 Master Builder
6280: Armada Flagship
Box Story Imperial Armada Large Builds Official Sets Pirates Pirates I Pirates Sets 

6280: Armada Flagship

July 13, 2021February 20, 2025 Master Builder
6207: A-wing Fighter
Episode IV/V/VI Medium Builds Official Sets Star Wars Star Wars Sets 

6207: A-wing Fighter

February 1, 2024February 1, 2024 Master Builder
4750: Draco’s Encounter with Buckbeak
Harry Potter Harry Potter Sets Official Sets Prisoner of Azkaban Very Small Builds 

4750: Draco’s Encounter with Buckbeak

May 16, 2023May 16, 2023 Master Builder
6454: Countdown Corner
Medium Builds Official Sets Space Port Town Town Sets 

6454: Countdown Corner

July 14, 2021July 14, 2021 Master Builder
6350: Pizza To Go
Classic Town Food and Drink Medium Builds Official Sets Town Town Sets 

6350: Pizza To Go

April 9, 2020February 3, 2021 Master Builder
6036: Skeleton Surprise
Castle Castle Sets Official Sets Royal Knights Small Builds 

6036: Skeleton Surprise

February 28, 2023February 28, 2023 Master Builder
6077: Knight’s Procession
Castle Castle Sets Classic Castle Official Sets Very Small Builds 

6077: Knight’s Procession

July 13, 2021July 13, 2021 Master Builder
6289: Red Beard Runner
Extra Large Builds Official Sets Pirates Pirates I Pirates Sets 

6289: Red Beard Runner

July 13, 2021July 13, 2021 Master Builder
2161: Aqua Dozer
Aquaraiders I Aquazone Aquazone Sets Large Builds Official Sets 

2161: Aqua Dozer

January 8, 2020April 4, 2020 Master Builder
5810: Vanity Fun
Belville Belville Sets Lion Knights Official Sets Playhouse Very Small Builds 

5810: Vanity Fun

April 10, 2021April 10, 2021 Master Builder
6750: Sonic Robot
Classic Space Classic Space Sets Official Sets Small Builds 

6750: Sonic Robot

September 22, 2019September 28, 2019 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.