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

6981 – Back B

September 22, 2019March 14, 2025 Master Builder 4957 Views

From: 6981: Aerial Intruder
Name: Genesis 1
Instructions: View PDF | Download .io File

Back B

Contributions

  1. Name, PDF, and .io file submitted March 29, 2020 by: Mr.AstonishedRaccoon
  • ← 6981 – Back A
  • 6981 – Back C →

You May Also Like

7153 – Back A

May 10, 2022May 10, 2022 Master Builder

6367 – Back A

February 17, 2023May 19, 2023 Master Builder

6950 – Back A

June 16, 2022June 28, 2022 Master Builder

7101 – Back A

April 8, 2026April 15, 2026 Master Builder

6337 – Back C

December 4, 2023December 4, 2023 Master Builder

6880 – Back C

June 2, 2022June 3, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

6834: Celestial Sled
Ice Planet 2002 Ice Planet 2002 Sets Official Sets Small Builds Space 

6834: Celestial Sled

February 9, 2021February 9, 2021 Master Builder

Year Released: 1993BricklinkInstructions

6444: Outback Airstrip
Classic Town Medium Builds Official Sets Outback Town Town Sets 

6444: Outback Airstrip

November 21, 2023November 21, 2023 Master Builder
6846: Tri-Star Voyager
Classic Space Classic Space Sets Official Sets Small Builds 

6846: Tri-Star Voyager

September 26, 2019September 28, 2019 Master Builder
1687: Midnight Transport
Airport Classic Town Large Builds Official Sets Town Town Sets 

1687: Midnight Transport

January 25, 2022January 25, 2022 Master Builder
6060: Knight’s Challenge
Castle Castle Sets Lion Knights Medium Builds Official Sets 

6060: Knight’s Challenge

July 2, 2024October 1, 2024 Master Builder
6394: Metro Park & Service Tower
Classic Town Extra Large Builds Gas Station Official Sets Town Town Sets Wrecker 

6394: Metro Park & Service Tower

February 17, 2023February 17, 2023 Master Builder
6038: Wolfpack Renegades
Castle Castle Sets Official Sets Small Builds Wolfpack 

6038: Wolfpack Renegades

October 14, 2021October 14, 2021 Master Builder
730: Steam Shovel with Carrier
Construction LEGOLAND Medium Builds Official Sets 

730: Steam Shovel with Carrier

February 21, 2024February 21, 2024 Master Builder
7106: Droid Escape
Episode IV/V/VI Official Sets Small Builds Star Wars Star Wars Sets 

7106: Droid Escape

March 1, 2023March 1, 2023 Master Builder
381: Police Headquarters
Classic Town Large Builds Official Sets Police Town Town Sets 

381: Police Headquarters

July 27, 2023July 27, 2023 Master Builder
6405: Sunset Stables
Medium Builds Official Sets Paradisa Town Town Sets 

6405: Sunset Stables

September 15, 2022September 15, 2022 Master Builder
6930: Space Supply Station
Classic Space Classic Space Sets Medium Builds Official Sets 

6930: Space Supply Station

September 13, 2019September 11, 2023 Master Builder
6833: Beacon Tracer
M:Tron M:Tron Sets Official Sets Space Very Small Builds 

6833: Beacon Tracer

April 11, 2020April 11, 2020 Master Builder
1592-2: Town Square – Castle Scene (Dutch Version)
Classic Town Extra Large Builds Official Sets Town Town Sets Traffic 

1592-2: Town Square – Castle Scene (Dutch Version)

October 22, 2021October 22, 2021 Master Builder
4544: Car Transport Wagon with Car
9V Medium Builds Official Sets Town Train Train Sets 

4544: Car Transport Wagon with Car

September 18, 2026September 18, 2026 Master Builder
6175: Crystal Explorer Sub
ABCs Aquanauts Aquazone Aquazone Sets Medium Builds Official Sets 

6175: Crystal Explorer Sub

January 20, 2022March 22, 2025 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.