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 Classic Space Classic Space Alternate Builds Instructions Added Small Alt Build Small Builds Space

6970 – Back H

June 8, 2022June 29, 2022 Master Builder 2539 Views

From: 6970: Beta-1 Command Base
Name: A Generic Scientific Railgun ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted on June 8, 2022 by: Shawn

← 6970 – Back E
6074 – Inside A →

You May Also Like

6834: Celestial Sled

February 9, 2021February 9, 2021 Master Builder

1974-4: Star Quest

September 7, 2023September 8, 2023 Master Builder

6770 – Back A

September 11, 2023September 11, 2023 Master Builder

6440 – Back D

July 8, 2022July 12, 2022 Master Builder

6480 – Back B

January 9, 2023January 10, 2023 Master Builder

6982 – Back B

November 9, 2019November 9, 2019 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

Airport Classic Town Official Sets Town Town Sets Very Small Builds

6529: Ultra Light I

July 14, 2022July 14, 2022 Master Builder

Episode I Extra Large Builds Official Sets Star Wars Star Wars Sets Star Wars Technic Technic

8002: Destroyer Droid

August 17, 2023September 1, 2023 Master Builder

ABCs Classic Space Classic Space Sets Medium Builds Official Sets Space

6931: FX-Star Patroller

January 12, 2021March 20, 2025 Master Builder

Basic Set Duplo Duplo Sets Official Sets Very Small Builds

2331: Barney The Skateboard Bear

December 29, 2021December 29, 2021 Master Builder

Castle Castle Sets Dragon Knights Medium Builds Official Sets

6076: Dark Dragon’s Den

December 27, 2021December 27, 2021 Master Builder

Black Knights Castle Castle Sets Extra Large Builds Niels Milan Pedersen Official Sets

6086: Black Knight’s Castle

October 11, 2021July 29, 2023 Master Builder

Classic Town Extra Large Builds Gas Station Official Sets Town Town Sets Wrecker

6394: Metro Park & Service Tower

February 17, 2023February 17, 2023 Master Builder

Classic Town Official Sets Police Small Builds Town Town Sets

6664: Chopper Cops

May 3, 2020May 3, 2020 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6234: Renegade’s Raft

May 23, 2022May 23, 2022 Master Builder

Harry Potter Harry Potter Sets Medium Builds Official Sets Sorcerer's Stone

4714: Gringott’s Bank

March 2, 2023March 2, 2023 Master Builder

Box Story Castle Castle Sets Extra Large Builds Fright Knights Official Sets

6097: Night Lord’s Castle

March 1, 2023March 17, 2025 Master Builder

Box Plus Harry Potter Harry Potter Sets Official Sets Playscape/Play Stage Box Small Builds Sorcerer's Stone

4723: Diagon Alley Shops

July 10, 2024October 8, 2024 Master Builder

Jørn Thomsen Large Builds Official Sets Spyrius Spyrius Sets

6959: Lunar Launch Site

April 27, 2020July 29, 2023 Master Builder

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

4719: Quality Quidditch Supplies

March 22, 2025March 22, 2025 Master Builder

Box Story Fabuland Fabuland Sets Medium Builds Official Sets

132: Cottage

March 1, 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
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.