Guake is a fancy Quake-like terminal which lets you access it by using a hotkey (user-customizable). Unobtrusive, Guake slides down from the top of the screen, and can be used while running other desktop applications, providing you with a quick access to the console.
Right now I’ve been playing Urban Terror (or UrT), it is a First Person Shooter (FPS) game similar to Counter-Strike. The game was developed using the open source Quake III Arena engine and can be played under GNU/Linux, Microsoft Windows and Mac OS X operating systems.
Good news to old time gamers, now you can play Dune 2 on Linux operating system natively (without dosbox or other emulator) with Dune Legacy project. For the uninitiated, (to my best knowledge), Dune 2 is the first RTS game for DOS (by Westwood, then acquired by EA Games) that spawn several other popular games in the genre such as C&C, Red Alert, Red Alert 2, etc.
Naturally you would need the original data files and maps to play Dune Legacy natively on Linux. Binaries for other operating systems (Windows, Mac OS X) are also available from the Dune Legacy Project website.