Skip to content
Back of the Box Builds

Back of the Box Builds

LEGO Set Alternate Builds!

  • THEMES
    • Adventurers
    • Aquazone
    • Belville
    • Building Set with People
    • Castle
    • Duplo
    • Harry Potter
    • Holiday and Event
    • Model Team
    • Ninja
    • Pirates
    • Rock Raiders
    • Space
    • Star Wars
    • Studios
    • Technic
    • Time Cruisers
    • Town
    • Train
    • Western
    • Misc
  • USEFUL LINKS
    • Contribute!
    • New Instructions
    • New Official Sets
    • New Alternate Builds
    • Minifigs
    • Very Small Builds
    • Small Builds
    • Medium Builds
    • Large Builds
    • Extra Large Builds
    • About
  • 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 D

September 22, 2019October 25, 2021 Master Builder 1026 Views

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

Back D

Contributions

  1. Name and PDF submitted on October 10, 2021 by: Krysto
  • ← 6981 – Back C
  • 6801: Moon Buggy →

You May Also Like

6668 – Back B

February 9, 2022March 15, 2022 Master Builder

7725 – Back B

December 29, 2021December 29, 2021 Master Builder

Book 6000 – Page 24-25

January 15, 2022January 18, 2022 Master Builder

6926 – Back C

October 12, 2021October 12, 2021 Master Builder

1896 – Back B

April 4, 2022April 4, 2022 Master Builder

6955 – Back E

February 3, 2021February 3, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

6047: Traitor Transport
Castle Castle Sets Fright Knights Medium Builds Official Sets 

6047: Traitor Transport

November 18, 2021November 18, 2021 Master Builder

Year Released: 1997BricklinkInstructions

6664: Chopper Cops
Classic Town Official Sets Police Small Builds Town Town Sets 

6664: Chopper Cops

May 3, 2020May 3, 2020 Master Builder
6850: Auxiliary Patroller
Futron Sets Futuron Official Sets Small Builds 

6850: Auxiliary Patroller

September 24, 2019September 28, 2019 Master Builder
6990: Futuron Monorail Transport System
Extra Large Builds Futron Sets Futuron Official Sets Space 

6990: Futuron Monorail Transport System

August 30, 2020August 30, 2020 Master Builder
1749: Paravane
Aquanauts Aquazone Aquazone Sets Official Sets Very Small Builds 

1749: Paravane

July 26, 2020July 26, 2020 Master Builder
6891: Gamma-V Laser Craft
Classic Space Classic Space Sets Medium Builds Official Sets 

6891: Gamma-V Laser Craft

September 13, 2019September 28, 2019 Master Builder
2152: Robo Raptor
Large Builds Official Sets RoboForce RoboForce Alternate Builds RoboForce Sets Space 

2152: Robo Raptor

January 14, 2021January 14, 2021 Master Builder
1787: Crater Cruiser
Medium Builds Official Sets Space Unitron Unitron Sets 

1787: Crater Cruiser

April 9, 2020July 18, 2020 Master Builder
7101: Lightsaber Duel
Episode I Official Sets Small Builds Star Wars Star Wars Sets 

7101: Lightsaber Duel

October 28, 2021October 28, 2021 Master Builder
6266: Cannon Cove
Imperial Guards Official Sets Pirates Pirates I Pirates Sets Small Builds 

6266: Cannon Cove

December 27, 2021December 27, 2021 Master Builder
6088: Robber’s Retreat
Large Builds Ninja Ninja Alternate Builds Ninja Official Sets Official Sets 

6088: Robber’s Retreat

January 24, 2022January 24, 2022 Master Builder
6642: Police Helicopter
Classic Town Official Sets Police Small Builds Town Town Sets 

6642: Police Helicopter

April 8, 2020April 8, 2020 Master Builder
1750: Renault Formula 1 Racer
Classic Town Official Sets Race Town Town Sets Very Small Builds 

1750: Renault Formula 1 Racer

July 13, 2021July 13, 2021 Master Builder
1877: Crusader’s Cart
Castle Castle Sets Forestmen Official Sets Small Builds 

1877: Crusader’s Cart

October 11, 2021October 11, 2021 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
6249: Pirates Ambush
Medium Builds Official Sets Pirates Pirates I Pirates Sets 

6249: Pirates Ambush

November 16, 2019April 4, 2020 Master Builder

MINIFIGS

About This Site

Logo
In the 1960s, 70s, 80s, 90s, and early 2000s there were pictures of additional builds on the back of LEGO® boxes. There was a note that said you could build any of those exciting models with that set. There were no instructions, until now.

Themes

  • Adventurers
  • Aquazone
  • Belville
  • Building Set with People
  • Castle
  • Duplo
  • Harry Potter
  • Holiday and Event
  • Model Team
  • Ninja
  • Pirates
  • Rock Raiders
  • Space
  • Star Wars
  • Studio
  • Technic
  • Time Cruisers
  • Town
  • Train
  • Western
  • Misc

Useful Links

  • Contribute!
  • 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)
  • About

In Honor of 1526

The classic space set that never was.

Copyright © 2022 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.