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 3611 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

6643 – Back B

July 2, 2024July 2, 2024 Master Builder

371-3 – Top B

October 8, 2024October 8, 2024 Master Builder

371-3 – Bottom A

October 8, 2024October 8, 2024 Master Builder

371-3 – Top A

October 8, 2024October 8, 2024 Master Builder

6548 – Back B

October 12, 2021October 12, 2021 Master Builder

7779 – Instructions B

June 22, 2026June 25, 2026 Master Builder

EXPLORE MORE OFFICIAL SETS

ABCs Insectoids Insectoids Sets Official Sets Space Very Small Builds

6817: Beta Buzzer

June 1, 2022March 22, 2025 Master Builder

Year Released: 1998BricklinkInstructions *Alternate Build Connection: Space Creeper

Niels Milan Pedersen Official Sets Pirates Pirates I Pirates Sets Small Builds

6257: Castaway’s Raft

June 6, 2022July 29, 2023 Master Builder

Insectoids Insectoids Sets Large Builds Official Sets

6919: Planetary Prowler

November 9, 2019November 9, 2019 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6841: Mineral Detector

October 3, 2019October 3, 2019 Master Builder

Large Builds Model Team Model Team Sets Official Sets

5510: Off Road 4×4

February 10, 2026February 10, 2026 Master Builder

Building Classic Town Large Builds Official Sets Town Town Sets

6388: Holiday Home with Caravan

July 1, 2022July 1, 2022 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6633: Family Car

April 19, 2021April 19, 2021 Master Builder

Indians Official Sets Very Small Builds Western Western Sets

6709: Tribal Chief

October 10, 2023October 10, 2023 Master Builder

Castle Castle Sets Lion Knights Official Sets Small Builds

6049: Viking Voyager

June 30, 2022June 30, 2022 Master Builder

Classic Town Official Sets Recreation Small Builds Town Town Sets

6514: Trail Ranger

May 10, 2022May 10, 2022 Master Builder

Castle Castle Sets Forestmen Medium Builds Niels Milan Pedersen Official Sets

6066: Camouflaged Outpost

October 11, 2021July 29, 2023 Master Builder

Episode IV/V/VI Large Builds Official Sets Star Wars Star Wars Sets

7264: Imperial Inspection

April 15, 2026April 15, 2026 Master Builder

Basic Set Duplo Duplo Sets Official Sets Very Small Builds

2333: Animal

May 16, 2023May 16, 2023 Master Builder

Building Classic Town Medium Builds Official Sets Town Town Sets

6370: Weekend Home

February 17, 2023February 19, 2023 Master Builder

Classic Town Official Sets Race Small Builds Town Town Sets

6646: Screaming Patriot

March 16, 2022March 16, 2022 Master Builder

Classic Town Official Sets Supplemental Town

6311: Curved Road Plates

October 10, 2022October 10, 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.