How do I block Counterstrike on my Home network?

Question

I have a lazy kid who plays counterstrike 24/7. I think if I block counterstrike he will take a shower and get a job. I've already forwarded all my ports except 80 both UDP and TCP on the router to a bogus IP address and Counterstrike still works. How do I stop this program from accessing the net? Any ideas?

Answer 1

Firewall.

Answer 2

Use software firewall, or windows firewall
you can block port 27015 which is the default port for counterstrike server (this port can be change in the server)