RULES AND FEATURES
We're aliens, and we hate singing and screaming earthlings. We keep our finger on the pulse and if suddenly someone sings-immediately swat.
Flash player plugin is not supported still Feb.21.
You can play the game KEEP SILENCE online 24 hours a day for free. It is no need to download and install it on your computer, and it is also not required you to be the registered user. Just ckick and enjoy. See also a set of related games below on that you might be interested to look.