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

Classic Space Classic Space Sets Official Sets Small Builds

6825: Cosmic Comet

September 12, 2019March 18, 2024 Master Builder 5338 Views

Year Released: 1985
Bricklink

Back A

Back A

6940: Alien Moon Stalker →

You May Also Like

Anti-Kipper Ballistic Missile

April 16, 2025April 16, 2025 Master Builder

920 – Back E

February 2, 2021October 25, 2021 Master Builder

6381 – Back D

February 15, 2023February 19, 2023 Master Builder

6828 – Back B

January 23, 2025January 30, 2025 Master Builder

6358: Snorkel Squad

April 15, 2021April 15, 2021 Master Builder

6893: Orion II Hyperspace

September 25, 2019September 28, 2019 Master Builder

EXPLORE MORE OFFICIAL SETS

Box Marketing Blurb Classic Town Extra Large Builds Official Sets Town Town Sets Traffic

6390: Main Street

February 10, 2023April 3, 2024 Master Builder

Year Released: 1980BricklinkInstructions The box reads, “The specialized pieces in this LEGO® Brand Building Set add an extra dimension of realism

Episode I Official Sets Small Builds Star Wars Star Wars Sets

7126: Battle Droid Carrier

July 26, 2023July 26, 2023 Master Builder

Large Builds Official Sets Space Unitron Unitron Sets

1793: Space Station Zenon

April 19, 2021April 19, 2021 Master Builder

ABCs Blacktron II Blacktron II Sets Jørn Thomsen Large Builds Official Sets Space

6981: Aerial Intruder

September 22, 2019August 15, 2023 Master Builder

ABCs Aquazone Aquazone Sets Hydronauts Official Sets Small Builds

6150 (6159): Crystal Detector

February 23, 2023February 18, 2025 Master Builder

Basic Official Sets Small Builds Universal Building Set

385-2: Build-N-Store Chest

September 8, 2025September 8, 2025 Master Builder

Blacktron II Blacktron II Sets Official Sets Space Very Small Builds

1694: Galactic Scout

February 9, 2021February 9, 2021 Master Builder

Futuron Official Sets Space Supplemental

6921: Monorail Accessory Track

September 1, 2023January 22, 2026 Master Builder

ABCs Aquazone Aquazone Sets Box Story Extra Large Builds Hydronauts Official Sets Stingrays

6199: Hydro Crystalization Station

February 18, 2025February 18, 2025 Master Builder

Islanders Official Sets Pirates Pirates I Pirates Sets Small Builds

6246: Crocodile Cage

January 26, 2022January 26, 2022 Master Builder

Aquashark Aquazone Aquazone Sets Official Sets Small Builds

6155: Deep Sea Predator

May 10, 2022May 10, 2022 Master Builder

Classic Town LL Link Official Sets Race Small Builds Town Town Sets

6648: Mag Racer

November 19, 2020July 11, 2024 Master Builder

Official Sets Small Builds Time Cruisers Time Cruisers Sets

6495: Time Tunnelator

July 14, 2021July 14, 2021 Master Builder

Official Sets Race Town Town Sets Very Small Builds

6503: Sprint Racer

July 9, 2022July 9, 2022 Master Builder

Classic Town Harbor Official Sets Small Builds Town Town Sets Wrecker

6663: Wave Rebel

June 6, 2022June 6, 2022 Master Builder

Classic Town Extra Large Builds Official Sets Town Town Sets Traffic

6393: Big-Rig Truck Stop

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
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.