Skip to content

Back of the Box Builds

LEGO Alternate Builds!

SETS
- Adventurers
- Aquazone
- Belville
- Building Set with People
- Castle
- Duplo
- Fabuland
- Harry Potter
- Holiday and Event
- LEGOLAND
- Model Team
- Pirates
- Space
- Star Wars
- Technic
- 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 Alternate Instructions Included Exploriens Exploriens Alternate Builds Instructions Added Medium Alt Build Medium Builds Space

6899 – Back C

February 5, 2023October 4, 2024 Master Builder 3728 Views

From: 6899: Nebula Outpost
Name: Nebula Mobile Lab ¹
Instructions: Included in 1993 Shop at Home – Holiday Express | View PDF | Download .io File

Contributions

Name, PDF and .io file submitted on February 5, 2023 by: Valdis

← 6899 – Back B
6541 – Back D →

You May Also Like

6542 – Back D

November 20, 2023November 29, 2023 Master Builder

6370 – Back E

February 17, 2023May 19, 2023 Master Builder

6430: Night Patroller

April 9, 2020February 4, 2021 Master Builder

928 – Inside B

November 24, 2020October 13, 2021 Master Builder

6270: Forbidden Island

April 4, 2022February 21, 2025 Master Builder

6932 – Back C

September 7, 2022May 17, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Town Official Sets Race Small Builds Town Town Sets

6646: Screaming Patriot

March 16, 2022March 16, 2022 Master Builder

Year Released: 1991BricklinkInstructions

Medium Builds Official Sets Technic Technic Sets

8024: Universal Set

October 20, 2019August 28, 2023 Master Builder

Castle Castle Sets Lion Knights Official Sets Very Small Builds

6022: Horse Cart

October 19, 2019April 4, 2020 Master Builder

Official Sets Town Town Jr Town Sets Traffic Very Small Builds

6422: Telephone Repair

July 28, 2020July 28, 2020 Master Builder

Classic Town Official Sets Police Small Builds Town Town Sets

6533: Police 4×4

January 6, 2022January 6, 2022 Master Builder

ABCs Classic Space Classic Space Sets Different Box Versions Different Set Numbers Jens Nygaard Knudsen Large Builds LL Link Official Sets Space

928 (497): Galaxy Explorer

November 24, 2020August 15, 2024 Master Builder

Large Builds Official Sets Star Wars Star Wars Sets

7140: X-wing Fighter

November 10, 2019April 17, 2020 Master Builder

Drome Racers Official Sets Racers Small Builds

4593: Zero Hurricane & Red Blizzard

January 27, 2025February 21, 2025 Master Builder

Chamber of Secrets Harry Potter Harry Potter Sets Medium Builds Official Sets

4733: The Dueling Club

March 3, 2023March 3, 2023 Master Builder

Airport Classic Town Official Sets Small Builds Town Town Sets

6687: Turbo Prop I

December 27, 2021December 27, 2021 Master Builder

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

7134: A-wing Fighter

December 29, 2021December 29, 2021 Master Builder

Aquashark Aquazone Aquazone Sets Official Sets Very Small Builds

6100: Aquashark Dart

March 20, 2023March 21, 2023 Master Builder

Classic Town Construction Medium Builds Official Sets Town Town Sets

6481: Construction Crew

April 9, 2020July 4, 2022 Master Builder

ABCs Insectoids Insectoids Sets Official Sets Space Very Small Builds

6817: Beta Buzzer

June 1, 2022March 22, 2025 Master Builder

Basic Large Builds Official Sets Universal Building Set

565: Build-N-Store Chest

December 28, 2023July 11, 2024 Master Builder

Medium Builds Official Sets Pirates Pirates I Pirates Sets

6249: Pirates Ambush

November 16, 2019February 20, 2025 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
Belville
Building Set with People
Castle
Duplo
Fabuland
Harry Potter
Holiday and Event
LEGOLAND
Model Team
Pirates
Space
Star Wars
Technic
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.