Skip to content

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
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Alternate Builds Classic Space Classic Space Alternate Builds Instructions Added Medium Alt Build Medium Builds Space

6901 – Back D

August 28, 2023March 14, 2025 Master Builder 3850 Views

From: 6901: Mobile Lab
Name: Grabber Lab ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted August 28, 2023 by: Mr.AstonishedRaccoon

← 6901 – Back C
854 – Front →

You May Also Like

6234 – Back B

May 23, 2022June 6, 2022 Master Builder

6949: Robo-Guardian

October 23, 2019August 15, 2023 Master Builder

c80us2

June 3, 2023June 23, 2025 Master Builder

6150 – Back A

February 23, 2023February 23, 2023 Master Builder

6975 – Back B

June 25, 2025July 21, 2025 Master Builder

6900: Cyber Saucer

October 2, 2024March 22, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

Castle Castle Sets Daniel August Krentz Large Builds Lion Knights Official Sets

6067: Guarded Inn

February 9, 2021July 29, 2023 Master Builder

Year Released: 1986Designer: Daniel August KrentzBricklinkInstructions

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6805: Astro Dasher

December 10, 2025December 10, 2025 Master Builder

Classic Town Off-Road Official Sets Small Builds Town Town Sets

6672: Safari Off-Road Vehicle

January 28, 2022January 28, 2022 Master Builder

Classic Town Extra Large Builds Gas Station Official Sets Town Town Sets Wrecker

6378: Service Station

February 25, 2023February 26, 2023 Master Builder

Castle Castle Sets Official Sets Small Builds Wolfpack

6038: Wolfpack Renegades

October 14, 2021October 14, 2021 Master Builder

Bonus/Value Pack Sets Official Sets Small Builds Space Spyrius Spyrius Sets

1843-2: {Spyrius Unknown}

September 8, 2023September 13, 2023 Master Builder

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

Large Builds Official Sets Res-Q Town Town Sets

6473: Res-Q Hovercraft

January 20, 2022January 20, 2022 Master Builder

Medium Builds Official Sets Police Town Town Jr Town Sets

6433: Coast Watch (Coastwatch)

July 10, 2024July 10, 2024 Master Builder

Drome Racers Official Sets Racers Very Small Builds

4582: Red Bullet

October 23, 2021February 21, 2025 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6842: Shuttle Craft

October 21, 2019October 21, 2019 Master Builder

Exo-Force Medium Builds Official Sets

7704: Sonic Phantom

April 28, 2023April 28, 2023 Master Builder

Classic Town Food and Drink Official Sets Small Builds Town Town Sets

6683: Burger Stand

May 1, 2024May 1, 2024 Master Builder

Large Builds Official Sets Space UFO UFO Sets

6975: Alien Avenger

November 9, 2019July 21, 2025 Master Builder

Classic Town Off-Road Official Sets Town Town Sets Very Small Builds

1730: Snow Scooter

April 11, 2023April 11, 2023 Master Builder

Castle Castle Sets Dark Forest Official Sets Small Builds

6024: Bandit Ambush

April 16, 2021April 16, 2021 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

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.