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
- 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 3985 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

6286 – Back B

February 8, 2022February 8, 2022 Master Builder

6345 – Back D

January 29, 2021September 15, 2022 Master Builder

4707 – Back A

May 27, 2024May 30, 2024 Master Builder

Anti-Kipper Ballistic Missile

April 16, 2025April 16, 2025 Master Builder

7782 – Instructions A

March 27, 2026March 27, 2026 Master Builder

6467 – Back B

June 23, 2025June 23, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Town Coast Guard Official Sets Small Builds Town Town Sets

6518: Baja Buggy

May 23, 2022May 23, 2022 Master Builder

Year Released: 1996BricklinkInstructions

Episode I Medium Builds Official Sets Star Wars Star Wars Sets

7151: Sith Infiltrator

September 1, 2023September 1, 2023 Master Builder

Bjarne Tveskov Different Box Versions Futron Sets Futuron Official Sets Small Builds

6884: Aero-Module

September 24, 2019March 17, 2024 Master Builder

Classic Town Fire Official Sets Town Town Sets Very Small Builds

6505: Fire Chief’s Car

July 8, 2022July 8, 2022 Master Builder

Box Story Islanders Medium Builds Official Sets Pirates Pirates I Pirates Sets

6278: Enchanted Island

February 20, 2025February 20, 2025 Master Builder

Classic Town Medium Builds Official Sets Race Town Town Sets

6335: Indy Transport

November 29, 2023November 29, 2023 Master Builder

Bonus/Value Packs Classic Space Classic Space Sets Duplicate Set Number Official Sets Small Builds Space

1969-2: Space Value Pack

January 29, 2025January 29, 2025 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

891: Two-Man Scooter

March 15, 2024March 15, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6881: Lunar Rocket Launcher

October 2, 2019October 2, 2019 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds

6872: Xenon X-Craft

October 19, 2019October 19, 2019 Master Builder

Box Plus Extra Large Builds FreeStyle FreeStyle Official Sets Official Sets Poster Storage Container

2146: FreeStyle with Storage Case

December 15, 2025December 15, 2025 Master Builder

Castle Castle Sets Dragon Knights Large Builds Official Sets

6082: Fire Breathing Fortress

January 13, 2022January 13, 2022 Master Builder

Extra Large Builds Model Team Model Team Sets Official Sets

5580: Highway Rig

February 9, 2026February 9, 2026 Master Builder

Hospital LEGOLAND Medium Builds Official Sets

780: Road Construction Set

February 14, 2024February 14, 2024 Master Builder

ABCs Jørn Thomsen M:Tron M:Tron Sets Official Sets Small Builds Space

6896: Celestial Forager

January 26, 2022July 31, 2023 Master Builder

ABCs Exploriens Exploriens Sets Official Sets Small Builds Space

6856: Planetary Decoder

April 16, 2021March 22, 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
BATMAN
Bionicle
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.