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 Instructions Added M:Tron M:Tron Alternate Builds Small Alt Build Small Builds Space

6877 – Back B

June 7, 2021January 6, 2025 Master Builder 4636 Views

From: 6877: Vector Detector
Name: Determinator ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted on November 16, 2021 by: IceAge2002

← 6877 – Back A
6877 – Back C →

You May Also Like

6883 – Back A

October 22, 2019September 11, 2023 Master Builder

3442 – Back A

October 13, 2021October 13, 2021 Master Builder

6266 – Back C

December 27, 2021June 3, 2022 Master Builder

Book 200 – Page 50-51

May 1, 2024September 12, 2024 Master Builder

6260 – Back B

August 31, 2022September 16, 2022 Master Builder

Robot Prototypes

January 1, 2024February 11, 2025 Master Builder

EXPLORE MORE OFFICIAL SETS

Holiday and Event Holiday and Event Sets Official Sets Small Builds

1628: Santa on Sleigh with Reindeer

November 25, 2020July 25, 2024 Master Builder

Year Released: 1989BricklinkInstructions

Alternate Instructions Included BIONICLE BIONICLE Sets Instructions Added Medium Alt Build Medium Builds Official Sets Titans

8593: Makuta

April 23, 2026April 23, 2026 Master Builder

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

4480: Jabba’s Palace

March 18, 2022March 18, 2022 Master Builder

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

4731: Dobby’s Release

January 23, 2024January 23, 2024 Master Builder

Indians Official Sets Very Small Builds Western Western Sets

2845: Indian Chief

October 10, 2023October 10, 2023 Master Builder

Episode III Medium Builds Official Sets Star Wars Star Wars Sets

7256: Jedi Starfighter & Vulture Droid

March 1, 2023May 12, 2023 Master Builder

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

924 (487): Space Cruiser

January 25, 2022October 17, 2024 Master Builder

Castle Castle Sets Duplicate Set Number Large Builds Official Sets Wolfpack

6075-1: Wolfpack Tower

October 11, 2021March 11, 2024 Master Builder

Classic Town Large Builds Official Sets Police Town Town Sets

381: Police Headquarters

July 27, 2023July 27, 2023 Master Builder

Island Xtreme Stunts Island Xtreme Stunts Sets Medium Builds Official Sets

6736: Beach Lookout

April 7, 2026April 7, 2026 Master Builder

Medium Builds Official Sets Outback Town Town Sets

6553: Crisis News Crew

December 4, 2023December 4, 2023 Master Builder

ABCs Official Sets Small Builds Space UFO UFO Sets

6829: Radon Rover

August 4, 2020March 22, 2025 Master Builder

Official Sets Racers Radio Control Small Builds

8675: Outdoor Challenger

July 15, 2024July 15, 2024 Master Builder

Divers Medium Builds Official Sets Town Town Sets

6557: Treasure Hunters

December 29, 2021June 28, 2022 Master Builder

Bjarne Tveskov Futron Sets Futuron Official Sets Space Very Small Builds

6830: Space Patroller

April 8, 2020July 29, 2023 Master Builder

Box Story Large Builds Official Sets Robo Force Robo Force Sets Space

2153: Robo Stalker

June 15, 2023April 3, 2024 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.