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 4053 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

6987: Message Intercept Base

September 12, 2019March 2, 2026 Master Builder

6479 – Back A

April 16, 2021April 16, 2021 Master Builder

6430 – Back D

December 22, 2023January 1, 2024 Master Builder

607 – Back C

October 19, 2019October 25, 2021 Master Builder

6348 – Back B

June 23, 2026June 23, 2026 Master Builder

4554 – Inside A

August 10, 2026August 10, 2026 Master Builder

EXPLORE MORE OFFICIAL SETS

9V Medium Builds Official Sets Train Train Sets

4536: Blue Hopper Car

July 10, 2026July 10, 2026 Master Builder

Year Released: 1991InstructionsBricklink

Classic Town Large Builds Official Sets Police Town Town Sets

6483: Coastal Patrol

December 29, 2021December 29, 2021 Master Builder

Box Marketing Blurb Extra Large Builds Jørn Thomsen M:Tron M:Tron Sets Official Sets

6989: Mega Core Magnetizer (Multi Core Magentizer)

September 15, 2019February 18, 2026 Master Builder

Arctic Medium Builds Official Sets Town Town Sets

6573: Arctic Expedition

May 22, 2026May 22, 2026 Master Builder

Classic Town Gas Station Medium Builds Official Sets Town Town Sets Wrecker

6562: Gas Stop Shop

September 19, 2022September 19, 2022 Master Builder

Episode II Episode IV/V/VI Medium Builds Official Sets Star Wars Star Wars Sets

4500: Rebel Snowspeeder

April 9, 2020April 9, 2020 Master Builder

ABCs Insectoids Insectoids Sets Official Sets Small Builds Space

6907: Sonic Stinger

October 3, 2024March 22, 2025 Master Builder

Castle Castle Sets Lion Knights Official Sets Small Builds

6049: Viking Voyager

June 30, 2022June 30, 2022 Master Builder

Classic Town Medium Builds Official Sets Outback Town Town Sets

6444: Outback Airstrip

November 21, 2023November 21, 2023 Master Builder

Classic Town Fire Official Sets Small Builds Town Town Sets

6525: Blaze Commander

May 4, 2020November 19, 2020 Master Builder

Classic Town Fire Large Builds Official Sets Town Town Sets

6385: Fire House-I

August 7, 2022August 7, 2022 Master Builder

Classic Town Official Sets Police Small Builds Town Town Sets

6664: Chopper Cops

May 3, 2020May 3, 2020 Master Builder

Harry Potter Harry Potter Sets Official Sets Prisoner of Azkaban Very Small Builds

4750: Draco’s Encounter with Buckbeak

May 16, 2023May 16, 2023 Master Builder

Aquashark Aquazone Aquazone Sets Large Builds Official Sets

6190: Shark’s Crystal Cave

July 13, 2021January 20, 2022 Master Builder

Extra Large Builds Official Sets Spider-Man Spider-Man 2 Spider-Man Sets

4856: Doc Ock’s Hideout

December 16, 2025December 16, 2025 Master Builder

Exo-Force Medium Builds Official Sets

8114: Chameleon Hunter

December 12, 2025January 6, 2026 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.