Raze is a game much like two dimensional version of Quake. The main objective of the game is to shoot other players or bots while trying to stay alive yourself. It's fun and addictive game in which you can play both campaign and quick matches. You start as a human fighting the aliens, but once you complete that campaign, you get to play as an alien as well.
You shouldn't worry too much if you're a newbie in the game as every player is advised to first complete the tutorial training area. There you learn the simple controls of the game which coincidentally are much like other shooting games, making this game very user friendly.
You have WSAD to move, mouse to aim and left mouse button to shoot. That along with Q and E to switch weapons sums up the basic controls, but Raze also has alternative controls choice for your preference.
This type of game I usually play as a filler game during the downtime of my "main game", but this thing is so fun that I usually lose track of time playing it, so have fun Razing!