I love to play games in my computer especially if I am bored. Killing time is way too convenient in this way. There are quite a lot of downloaded games available online that you may want to try. Of course make sure you are interested to those games before downloading them so you won't gonna waste your computer memory.
Also, in downloading games in your computer, make sure your computer is protected from viruses and the site where the games will be downloading from is also safe.