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
Alternate Builds Classic Space Classic Space Alternate Builds Small Builds Space 

6870 – Back C

January 12, 2021January 12, 2021 Master Builder 4150 Views

From: 6870: Space Probe Launcher
Name: TBD
Submitted by: USER
Instructions

Back C
  • ← 6870 – Back B
  • 6950: Mobile Rocket Transport →

You May Also Like

6363 – Back B

February 17, 2023February 18, 2023 Master Builder

5521 – Back A

January 29, 2026March 4, 2026 Master Builder

6536 – Back A

January 22, 2026January 22, 2026 Master Builder

3056 – Side R

July 26, 2020July 26, 2020 Master Builder

6820 – Back A

June 22, 2025June 24, 2025 Master Builder

6580 – Back A

June 25, 2025June 25, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

6991: Monorail Transport Base
Extra Large Builds Jørn Thomsen Official Sets Space Unitron Unitron Sets 

6991: Monorail Transport Base

September 28, 2019July 29, 2023 Master Builder

Year Released: 1994Designer: Jørn ThomsenBricklinkInstructions

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
6558: Shark Cage Cove
Divers Medium Builds Official Sets Town Town Sets 

6558: Shark Cage Cove

December 29, 2021December 29, 2021 Master Builder
6423: Tow-away Truck
Official Sets Town Town Jr Town Sets Very Small Builds Wrecker 

6423: Tow-away Truck

July 10, 2026July 10, 2026 Master Builder
6927: All Terrain Vehicle
Classic Space Classic Space Sets Medium Builds Official Sets 

6927: All Terrain Vehicle

October 22, 2019October 22, 2019 Master Builder
375-2 (6075-2): Castle
ABCs Castle Castle Sets Classic Castle Daniel August Krentz Different Set Numbers Duplicate Set Number Extra Large Builds Official Sets 

375-2 (6075-2): Castle

November 8, 2019September 5, 2025 Master Builder
4793: Ogel Sub Shark
Alpha Team Alpha Team Sets Medium Builds Mission Deep Sea Official Sets 

4793: Ogel Sub Shark

February 21, 2024February 21, 2024 Master Builder
6454: Countdown Corner
Medium Builds Official Sets Space Port Town Town Sets 

6454: Countdown Corner

July 14, 2021July 14, 2021 Master Builder
6953: Cosmic Laser Launcher
Bjarne Tveskov Futron Sets Futuron Medium Builds Official Sets Space 

6953: Cosmic Laser Launcher

February 3, 2021July 29, 2023 Master Builder
6357: Stunt ‘Copter N’ Truck
Classic Town Medium Builds Official Sets Town Town Sets Traffic 

6357: Stunt ‘Copter N’ Truck

January 28, 2022January 28, 2022 Master Builder
6975: Alien Avenger
Large Builds Official Sets Space UFO UFO Sets 

6975: Alien Avenger

November 9, 2019July 21, 2025 Master Builder
889: Radar Truck
Classic Space Classic Space Sets Official Sets Very Small Builds 

889: Radar Truck

September 22, 2019September 28, 2019 Master Builder
6247: Bounty Boat
Imperial Guards Official Sets Pirates Pirates I Pirates Sets Very Small Builds 

6247: Bounty Boat

May 10, 2022May 10, 2022 Master Builder
6392: Airport
ABCs Airport Classic Town Extra Large Builds Official Sets Town Town Sets 

6392: Airport

June 28, 2022August 16, 2023 Master Builder
7711: Sentry
Exo-Force Official Sets Small Builds 

7711: Sentry

August 11, 2023August 11, 2023 Master Builder
4714: Gringott’s Bank
Harry Potter Harry Potter Sets Medium Builds Official Sets Sorcerer's Stone 

4714: Gringott’s Bank

March 2, 2023March 2, 2023 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.