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
- Train
- 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 Medium Alt Build Medium Builds Space UFO UFO Alternate Builds

6900 – Back B

June 24, 2026June 25, 2026 Master Builder 4354 Views

From: 6900: Cyber Saucer
Name: Cyber Sweeper ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted on June 24, 2026 by: MrGrumpy1834

← 6348 – Back F
4563 – Back A →

You May Also Like

6972 – Back B

September 15, 2019November 21, 2023 Master Builder

6546 – Back B

May 23, 2022May 23, 2022 Master Builder

6444 – Back C

May 17, 2024May 30, 2024 Master Builder

6770 – Back A

September 11, 2023September 11, 2023 Master Builder

MAGS

March 14, 2025April 10, 2025 Master Builder

6273 – Back C

August 31, 2024September 6, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Town Official Sets Race Small Builds Town Town Sets

6646: Screaming Patriot

March 16, 2022March 16, 2022 Master Builder

Year Released: 1991BricklinkInstructions

Classic Town Construction Official Sets Small Builds Town Town Sets

6662: Backhoe

July 8, 2022July 8, 2022 Master Builder

Classic Space Classic Space Sets Medium Builds Official Sets

6930: Space Supply Station

September 13, 2019September 11, 2023 Master Builder

Airport LEGOLAND Medium Builds Official Sets

371-3: Seaplane

October 8, 2024October 8, 2024 Master Builder

Extra Large Builds Official Sets Pirates Pirates I Pirates Sets

6289: Red Beard Runner

July 13, 2021July 13, 2021 Master Builder

Extra Large Builds Official Sets Res-Q Town Town Sets

6479: Emergency Response Center

April 16, 2021January 20, 2022 Master Builder

Blacktron II Blacktron II Sets Official Sets Space Very Small Builds

1694: Galactic Scout

February 9, 2021February 9, 2021 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6827: Strata Scooter

October 13, 2021October 13, 2021 Master Builder

Construction LEGOLAND Medium Builds Official Sets

730: Steam Shovel with Carrier

February 21, 2024February 21, 2024 Master Builder

Castle Castle Sets Fright Knights Large Builds Official Sets

6087: Witch’s Magic Manor

July 8, 2022July 8, 2022 Master Builder

9V Official Sets Small Builds Town Train Train Sets

4525: Road and Rail Repair

July 22, 2026July 22, 2026 Master Builder

Classic Space Classic Space Sets Jens Nygaard Knudsen Medium Builds Official Sets Space

926 (493): Space Command Center

October 22, 2019July 31, 2023 Master Builder

Castle Castle Sets Official Sets Very Small Builds Wolfpack

1596: Ghostly Hideout

July 25, 2024July 25, 2024 Master Builder

Black Knights Castle Castle Sets Medium Builds Official Sets

6059: Knight’s Stronghold

July 13, 2021July 13, 2021 Master Builder

Ice Planet 2002 Ice Planet 2002 Sets Jørn Thomsen Official Sets Space Very Small Builds

1731 (1711, Kabaya: Space 4): Ice Planet Scooter

April 6, 2020March 10, 2025 Master Builder

Divers Official Sets Small Builds Town Town Sets

6556: Scuba Squad

June 28, 2022June 28, 2022 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
Train
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.