Blocking A Game

Hello, my brother plays this game called “Hellgate London Global”and what I want to do is block the game from using internet connection so he cannot play online. How is this possible?I tried blocking via firewall but it can still go online, I want to do it without having pop up saying that it is blocked. Thanks.
Answer #1
I think most antiviruses have the option to block a program from connecting to the internet.
Answer #2
yes, you can add an exception on your antivirus program to avoid the game accessing the internet
Answer #3
Can I do it without any programs antiviruses? Haven’t use an antivirus in so long don’t really want to install one , like maybe putting something in the host file? or something? If not I will download an antivirus as my last resort.
Answer #4
simple_faith replied: Can I do it without any programs antiviruses? Haven't use an antivirus in so long don't really want to install one , like maybe putting something in the host file? or something? If not I will download an antivirus as my last resort.
Possibly,
Add the .exe file to hosts by running Notepad in Admin rights
Then add 127.0.0.1 and the .exe of the file you want to block.