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 3785 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

710 – Back C

June 24, 2025June 26, 2025 Master Builder

897 – Back D

September 16, 2019October 25, 2021 Master Builder

6642 – Back B

April 8, 2020April 8, 2020 Master Builder

4705 – Back B

June 12, 2024June 17, 2024 Master Builder

6529 – Back B

April 11, 2023May 17, 2023 Master Builder

6266 – Back C

December 27, 2021June 3, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

Indians Jørn Thomsen Official Sets Small Builds Western Western Sets

6718: Raindance Ridge (Rain Dance Ridge)

August 4, 2020July 29, 2023 Master Builder

Year Released: 1997Designer: Jørn ThomsenBricklinkInstructions

Drome Racers Official Sets Racers Very Small Builds

4582: Red Bullet

October 23, 2021February 21, 2025 Master Builder

ABCs Box Story Jørn Thomsen Large Builds Official Sets Space Space Police II Space Police II Sets

6957: Solar Snooper

March 18, 2022February 18, 2025 Master Builder

ABCs Aquanauts Aquazone Aquazone Sets Box Plus Official Sets Playscape/Play Stage Box Small Builds

1728 (6145): Crystal Crawler {with Aqua Playscape}

August 1, 2023March 22, 2025 Master Builder

Box Story Ice Planet 2002 Ice Planet 2002 Sets Jørn Thomsen Large Builds Official Sets Space

6983: Ice Station Odyssey

November 9, 2019March 20, 2025 Master Builder

Black Knights Castle Castle Sets Medium Builds Official Sets

6057: Sea Serpent

April 14, 2025April 14, 2025 Master Builder

Classic Space Classic Space Sets Large Builds Official Sets Space

6970: Beta-1 Command Base

January 20, 2021January 20, 2021 Master Builder

ABCs Futron Sets Futuron Large Builds Official Sets Space

6932: Stardefender 200

September 24, 2019August 15, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

891: Two-Man Scooter

March 15, 2024March 15, 2024 Master Builder

Classic Town Official Sets Post Office Small Builds Town Town Sets

6651: Post Office Van

February 3, 2021February 3, 2021 Master Builder

Castle Castle Sets Lion Knights Medium Builds Official Sets

6061: Siege Tower

January 6, 2022January 6, 2022 Master Builder

Imperial Armada Official Sets Pirates Pirates Sets Small Builds

6244: Armada Sentry

November 16, 2019April 4, 2020 Master Builder

Medium Builds Official Sets Pirates Pirates I Pirates Sets

6296: Shipwreck Island

January 12, 2022January 12, 2022 Master Builder

Medium Builds Official Sets Outback Town Town Sets

6553: Crisis News Crew

December 4, 2023December 4, 2023 Master Builder

Duplicate Set Number Official Sets UFO UFO Sets Very Small Builds

6901-2: Space Plane

December 16, 2025December 16, 2025 Master Builder

Bonus/Value Pack Sets Bonus/Value Packs Exploriens Exploriens Sets Official Sets Small Builds Space UFO UFO Sets

VP-5: UFO Value Pack

December 10, 2025December 10, 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.