City Siege Sniper is one of the top shooting games that you can play online for free. It is about a survival combat which is set in a densely populated place. Your mission will include killing Baddies and saving Civilians. Especially, you can throw a stone or more to distract the enemy before you choose the proper weapon and destroy the target. You'd better learn all of the tutorials before you embark on your job. There are a lot of keys that you should care. Good luck!