Mumble is a nice, free (gpl) game only available for Windows, belonging to the category PC games with subcategory Various Utilities (more specifically Voice Communication).
More about Mumble
Since we added this game to our catalog in 2011, it has obtained 515,238 downloads, and last week it had 14 downloads.
About the download, Mumble is a light game that takes up less free space than the average game in the category PC games. It's a game mostly downloaded in Ethiopia, United States, and Pakistan.
It's available for users with the operating system Windows 2000 and prior versions, and you can download it in many languages like English, Spanish, and German. The current version of the game is 1.2.6 and its last update happened on 5/19/2014.