: The game is verified as "Playable" on Steam Deck and runs successfully on SteamOS , though some setup may require the touchscreen or virtual keyboard. Version & Download Information
For the most secure and up-to-date experience, it is recommended to use official distribution platforms: download-m-a-s-s-builder-v16-01-2022
: The Official Wiki and Community FAQ provide detailed lore, update histories, and troubleshooting for specific builds. Important Note on File Security : The game is verified as "Playable" on