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 3475 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

1761 – Back C

April 10, 2023April 10, 2023 Master Builder

6594 – Back A

January 9, 2023July 15, 2025 Master Builder

6334 – Back D

June 27, 2022June 27, 2022 Master Builder

6980 – Inside A

July 21, 2021July 21, 2021 Master Builder

Book 6000 – Page 42-43

February 7, 2022March 15, 2022 Master Builder

6849 – Back B

January 13, 2021January 13, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

Box Story Duplicate Set Number Medium Builds Ninja Ninja Alternate Builds Ninja Official Sets Official Sets

6083-2: Samurai Stronghold

December 16, 2025December 16, 2025 Master Builder

Year Released: 1998BricklinkInstructions

Medium Builds Official Sets Space Unitron Unitron Sets

1787: Crater Cruiser

April 9, 2020July 18, 2020 Master Builder

Extra Large Builds Model Team Model Team Sets Official Sets

5550: Custom Rally Van

February 9, 2026March 4, 2026 Master Builder

Classic Town Official Sets Police Small Builds Town Town Sets

6681: Police Van

October 13, 2021October 13, 2021 Master Builder

ABCs Box Marketing Blurb Jørn Thomsen Large Builds Official Sets Space Space Police II Space Police II Sets

6984: Galactic Mediator

March 18, 2022June 23, 2025 Master Builder

ABCs Box Story Large Builds Official Sets Robo Force Robo Force Sets Space

2154: Robo Master

June 14, 2023February 11, 2025 Master Builder

Classic Town Construction Official Sets Town Town Sets Very Small Builds

6630: Bucket Loader

October 13, 2021October 13, 2021 Master Builder

Belville Belville Sets Lion Knights Official Sets Recreation Very Small Builds

5830: Fun-Day Sundaes

April 19, 2021April 19, 2021 Master Builder

Alpha Team Alpha Team Sets Mission Deep Sea Official Sets Very Small Builds

Kabaya: Alpha Team 3

September 9, 2024September 9, 2024 Master Builder

Classic Space Classic Space Sets Jens Nygaard Knudsen Medium Builds Official Sets Space

926 (493): Space Command Center

October 22, 2019July 31, 2023 Master Builder

Box Plus Different Box Versions Medium Builds Official Sets Storage Container Time Cruisers Time Cruisers Sets

1853: Navigator

March 18, 2025March 5, 2026 Master Builder

Basic Extra Large Builds Official Sets Universal Building Set

725: Basic Building Set

July 22, 2024July 22, 2024 Master Builder

Large Builds Official Sets Star Wars Star Wars Sets

7150: TIE Fighter & Y-wing

April 21, 2026April 21, 2026 Master Builder

Extra Large Builds Model Team Model Team Sets Official Sets

5581: Magic Flash

January 2, 2024January 2, 2024 Master Builder

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

1620-2: Factory

October 21, 2021October 21, 2021 Master Builder

Classic Town Large Builds Official Sets Recreation Town Town Sets

6552: Rocky River Retreat

July 15, 2022July 15, 2022 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.