Ubuntu is a free operating system that uses the Linux kernel. This tag should be used when the question is specifically about an Ubuntu version of a game, or about gaming on Ubuntu devices, (such as PC and mobile).
Ubuntu (pronounced uu-BUUN-too) is a free and open source operating system based on Debian (a Linux kernel). It is named after the Southern African philosophy of ubuntu, which can be translated as "humanity towards others" or "the belief in a universal bond of sharing that connects all humanity".
Development of Ubuntu is led by the company Canonical, which sells technical support and other services as a means to generate revenue. Ubuntu uses the Unity Desktop as its default desktop environment. (In versions prior to 11.04, it was the GNOME panel).
Questions should use this tag when the question is specifically asking about an Ubuntu version of a game, configuration or other technical support issues, or other gaming-related topics related to Ubuntu, such as the Steam Platform release for Ubuntu.
You can also ask questions specific to the Ubuntu operating system on Ask Ubuntu.