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 Blacktron II Blacktron II Alternate Builds Instructions Added Space Very Small Alt Build Very Small Builds

6851 – Back C

October 24, 2019October 25, 2021 Master Builder 3475 Views

From: 6851: Tri-Wheeled Tyrax
Name: Trianglax ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF, and .io file submitted on May 17, 2021 by: IceAge2002

← 6851 – Back B
6889: Recon Robot →

You May Also Like

1858: Droid Scout

July 8, 2022July 8, 2022 Master Builder

Book 6000 – Page 82-83

January 26, 2022September 5, 2025 Master Builder

6034 – Back A

January 16, 2022January 16, 2022 Master Builder

6080 – Back A

October 2, 2022December 20, 2022 Master Builder

4582: Red Bullet

October 23, 2021February 21, 2025 Master Builder

6379 – Back A

February 8, 2022February 8, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

Bonus/Value Pack Sets Bonus/Value Packs Official Sets Small Builds

1597: Castle 3-Pack

July 22, 2024January 20, 2026 Master Builder

Year Released: 1993BricklinkContains Sets: 1624: King’s Archer, 1547: Black Knights Boat, and 1596: Ghostly Hideout NONE 🙁

Basic Set Duplo Duplo Sets Official Sets Very Small Builds

2331: Barney The Skateboard Bear

December 29, 2021December 29, 2021 Master Builder

Episode III Medium Builds Official Sets Star Wars Star Wars Sets

7252: Droid Tri-Fighter

March 3, 2023November 12, 2024 Master Builder

Extra Large Builds Model Team Model Team Sets Official Sets

5581: Magic Flash

January 2, 2024January 2, 2024 Master Builder

Official Sets Pirates Pirates I Pirates Sets Small Builds

6258: Smuggler’s Shanty

July 8, 2022July 8, 2022 Master Builder

ABCs Bjarne Tveskov Extra Large Builds Futron Sets Futuron Official Sets Space

6990: Futuron Monorail Transport System

August 30, 2020February 12, 2025 Master Builder

Bonus/Value Pack Sets Castle Castle Sets Official Sets Royal Knights Small Builds

1843-3: {Royal Knights Unknown}

September 8, 2023September 13, 2023 Master Builder

Basic Official Sets Small Builds Universal Building Set

510: Basic Building Set

July 11, 2024July 11, 2024 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6823: Surface Transport

September 30, 2019September 30, 2019 Master Builder

Bonus/Value Pack Sets Bonus/Value Packs M:Tron M:Tron Sets Official Sets Space Very Small Builds

9401: M:Tron Team

February 18, 2026March 7, 2026 Master Builder

Classic Town Official Sets Police Small Builds Town Town Sets

1895: Sky Patrol

June 1, 2022June 1, 2022 Master Builder

ABCs Insectoids Insectoids Sets Official Sets Small Builds

6837: Cosmic Creeper (Mantis Scavenger)

April 2, 2020March 22, 2025 Master Builder

Official Sets Res-Q Small Builds Town Town Sets

6431: Road Rescue

January 20, 2022January 20, 2022 Master Builder

Aquaraiders I Aquazone Aquazone Sets Medium Builds Official Sets

2160: Crystal Scavenger

April 25, 2023April 25, 2023 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6806: Surface Hopper

April 16, 2021April 16, 2021 Master Builder

Box Story Extra Large Builds Niels Milan Pedersen Official Sets Pirates Pirates I Pirates Sets

6285: Black Seas Barracuda

August 3, 2023February 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
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.