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Back of the Box Builds

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
    • 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

Blacktron II Alternate Builds

Blacktron II Blacktron II Alternate Builds Blacktron II Sets Jørn Thomsen Large Builds Official Sets Space Super Model 

6861: Blacktron Super Model

July 29, 2023July 29, 2023 Master Builder 4506 Views

Year Released: 1991Designer: Jørn ThomsenBricklinkInstructions

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ABCs Blacktron Blacktron Alternate Builds Blacktron II Blacktron II Alternate Builds Concepts and Prototypes Space 

Blacktron Concept

February 23, 2023February 11, 2025 Master Builder 4424 Views

MiscTheme: Blacktron BrickJournal: Issue 6 Volume 2 – Page 39TwoMorrows PublishingPhoto Credit: Niels Milan Pedersen’s personal LEGO archives Build 1: TBDSubmitted

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Medium Alt Build Medium Builds Space 

6933 – Back D

August 31, 2022September 19, 2022 Master Builder 2321 Views

From: 6933: Spectral StarguiderName: Blacktron Bee Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Medium Alt Build Medium Builds Space 

6933 – Back C

July 12, 2022July 13, 2022 Master Builder 4411 Views

From: 6933: Spectral StarguiderName: Middle-Axle Cruiser Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Medium Alt Build Medium Builds Space 

6933 – Back B

June 6, 2022June 6, 2022 Master Builder 3220 Views

From: 6933: Spectral StarguiderName: BT-2 Recon Trix Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Medium Alt Build Medium Builds Space 

6933 – Back A

May 18, 2022May 23, 2022 Master Builder 5646 Views

From: 6933: Spectral StarguiderName: BT Juggernaught Instructions: View PDF | Download .io File NOTE – The small ship in the top right cannot

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Space Very Small Alt Build Very Small Builds 

6812 – Back C

February 12, 2021January 6, 2025 Master Builder 3349 Views

From: 6812: Grid TrekkorName: Grid Buggy Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Space Very Small Alt Build Very Small Builds 

6812 – Back B

February 12, 2021January 6, 2025 Master Builder 3018 Views

From: 6812: Grid TrekkorName: Grid Station Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Space Very Small Alt Build Very Small Builds 

6812 – Back A

February 12, 2021January 6, 2025 Master Builder 3043 Views

From: 6812: Grid TrekkorName: Grid Uplink Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Space Very Small Alt Build Very Small Builds 

1694 – Back C

February 9, 2021March 14, 2025 Master Builder 2963 Views

From: 1694: Galactic ScoutName: Galactic Simulator Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Space Very Small Alt Build Very Small Builds 

1694 – Back B

February 9, 2021March 14, 2025 Master Builder 2938 Views

From: 1694: Galactic ScoutName: Galactic VR System Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Space Very Small Alt Build Very Small Builds 

1694 – Back A

February 9, 2021March 14, 2025 Master Builder 3374 Views

From: 1694: Galactic ScoutName: Galactic Terminal Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Space Very Small Alt Build Very Small Builds 

6851 – Back C

October 24, 2019October 25, 2021 Master Builder 2658 Views

From: 6851: Tri-Wheeled TyraxName: Trianglax Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Space Very Small Alt Build Very Small Builds 

6851 – Back B

October 24, 2019October 25, 2021 Master Builder 2784 Views

From: 6851: Tri-Wheeled TyraxName: Flyrax Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Space Very Small Alt Build Very Small Builds 

6851 – Back A

October 24, 2019October 25, 2021 Master Builder 3153 Views

From: 6851: Tri-Wheeled TyraxName: Reverse Tyrax Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Large Builds 

6988 – Back D

October 24, 2019October 24, 2019 Master Builder 2918 Views

From: 6988: Alpha Centauri OutpostName: TBDSubmitted by: USERInstructions

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Alternate Builds Blacktron II Blacktron II Alternate Builds Large Builds 

6988 – Back C

October 24, 2019October 24, 2019 Master Builder 2286 Views

From: 6988: Alpha Centauri OutpostName: TBDSubmitted by: USERInstructions

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Alternate Builds Blacktron II Blacktron II Alternate Builds Large Builds 

6988 – Back B

October 24, 2019October 24, 2019 Master Builder 3097 Views

From: 6988: Alpha Centauri OutpostName: TBDSubmitted by: USERInstructions

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Large Alt Build Large Builds 

6988 – Back A

October 24, 2019December 27, 2021 Master Builder 2858 Views

From: 6988: Alpha Centauri OutpostName: Sirius Station Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6887 – Back D

October 5, 2019October 25, 2021 Master Builder 3340 Views

From: 6887: Allied AvengerName: Bitron Man Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6887 – Back C

October 5, 2019October 25, 2021 Master Builder 2966 Views

From: 6887: Allied AvengerName: Antenna Man Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6887 – Back B

October 5, 2019October 25, 2021 Master Builder 3349 Views

From: 6887: Allied AvengerName: Hefty Hulk Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6887 – Back A

October 5, 2019October 25, 2021 Master Builder 3231 Views

From: 6887: Allied AvengerName: Wieldy Wasp Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Space Very Small Alt Build Very Small Builds 

6832 – Back C

October 5, 2019October 25, 2021 Master Builder 3434 Views

From: 6832: Super Nova IIName: Anti-Nova Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Space Very Small Alt Build Very Small Builds 

6832 – Back B

October 5, 2019October 25, 2021 Master Builder 2833 Views

From: 6832: Super Nova IIName: Hyper Nova Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Space Very Small Alt Build Very Small Builds 

6832 – Back A

October 5, 2019October 25, 2021 Master Builder 2794 Views

From: 6832: Super Nova IIName: Blackthrone Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6878 – Back C

October 4, 2019October 25, 2021 Master Builder 3326 Views

From: 6878: Sub Orbital GuardianName: Sub Zero Hero Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6878 – Back B

October 4, 2019October 25, 2021 Master Builder 3144 Views

From: 6878: Sub Orbital GuardianName: Cyno Surveyor Instructions: View PDF | Download .io File

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ABCs Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Small Alt Build Small Builds Space 

6878 – Back A

October 4, 2019July 31, 2023 Master Builder 2750 Views

From: 6878: Sub Orbital GuardianName: Terra Protector Instructions: View PDF | Download .io File *Alternate Build Connection: 6876 – Back C

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ABCs Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Large Alt Build Large Builds Space 

6981 – Back D

September 22, 2019December 21, 2023 Master Builder 2792 Views

From: 6981: Aerial IntruderName: Terrestrial Intruder Instructions: View PDF | Download .io File *Alternate Build Connection: Encounter at Ice Station Odyssey – Page

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Large Alt Build Large Builds 

6981 – Back C

September 22, 2019November 3, 2021 Master Builder 3206 Views

From: 6981: Aerial IntruderName: Mobile Intruder Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Large Alt Build Large Builds Space 

6981 – Back B

September 22, 2019March 14, 2025 Master Builder 3207 Views

From: 6981: Aerial IntruderName: Genesis Instructions: View PDF | Download .io File

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Alternate Builds Blacktron II Blacktron II Alternate Builds Instructions Added Large Alt Build Large Builds 

6981 – Back A

September 22, 2019November 3, 2021 Master Builder 4214 Views

From: 6981: Aerial IntruderName: Base and Intruders Instructions: View PDF | Download .io File

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EXPLORE MORE OFFICIAL SETS

1966: Car Repair Shop
Classic Town Large Builds Official Sets Town Town Sets Traffic 

1966: Car Repair Shop

May 16, 2025May 16, 2025 Master Builder

Year Released: 1985BricklinkInstructions

6852: Sonar Security
Jørn Thomsen Official Sets Small Builds Space Space Police II Space Police II Sets 

6852: Sonar Security

September 22, 2020July 29, 2023 Master Builder
1732 (1712): Crossbow Cart
Castle Castle Sets Dragon Knights Official Sets Very Small Builds 

1732 (1712): Crossbow Cart

August 19, 2024October 8, 2024 Master Builder
6941: Battrax
Blacktron Blacktron Sets Large Builds Official Sets 

6941: Battrax

September 13, 2019September 28, 2019 Master Builder
6764: Sheriff’s Lock-Up
Medium Builds Official Sets Western Western Sets 

6764: Sheriff’s Lock-Up

September 1, 2024September 1, 2024 Master Builder
6666: Ambulance
Classic Town Hospital Official Sets Small Builds Town Town Sets 

6666: Ambulance

October 30, 2021October 30, 2021 Master Builder
6345: Aerial Acrobats
Airport Classic Town Large Builds Official Sets Town Town Sets 

6345: Aerial Acrobats

January 29, 2021September 15, 2022 Master Builder
1853: Navigator
Box Plus Different Box Versions Medium Builds Official Sets Playscape/Play Stage Box Time Cruisers Time Cruisers Sets 

1853: Navigator

March 18, 2025March 20, 2025 Master Builder
6388: Holiday Home with Caravan
Building Classic Town Large Builds Official Sets Town Town Sets 

6388: Holiday Home with Caravan

July 1, 2022July 1, 2022 Master Builder
6195: Neptune Discovery Lab (Aqua Dome 7)
ABCs Aquanauts Aquazone Aquazone Sets Extra Large Builds Jørn Thomsen Official Sets 

6195: Neptune Discovery Lab (Aqua Dome 7)

January 20, 2022February 11, 2025 Master Builder
6915: Warp Wing Fighter
Large Builds Official Sets UFO UFO Sets 

6915: Warp Wing Fighter

November 9, 2019November 9, 2019 Master Builder
565: Moon Landing
Large Builds LEGOLAND Official Sets Space 

565: Moon Landing

July 11, 2024July 11, 2024 Master Builder
6990: Futuron Monorail Transport System
ABCs Bjarne Tveskov Extra Large Builds Futron Sets Futuron Official Sets Space 

6990: Futuron Monorail Transport System

August 30, 2020February 12, 2025 Master Builder
6713: Grip-n-Go Challenge
Large Builds Official Sets Race Town Town Sets 

6713: Grip-n-Go Challenge

February 10, 2025February 10, 2025 Master Builder
6020: Magic Shop
Castle Castle Sets Dragon Knights Official Sets Small Builds 

6020: Magic Shop

December 28, 2021December 28, 2021 Master Builder
6984: Galactic Mediator
ABCs Box Marketing Blurb Jørn Thomsen Large Builds Official Sets Space Space Police II Space Police II Sets 

6984: Galactic Mediator

March 18, 2022June 23, 2025 Master Builder

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INSTRUCTIONS

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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.

Copyright © 2025 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.