You can find more information about the master's programme in Artificial Intelligence at
http://www.studeren.uva.nl/msc_artificial_intelligence/. Gaming and Intelligent Systems are tracks in that programme. That page will most likely answer quite a few questions you might have. I cannot help you further when it comes to that specific master's programme, nor when it comes to studying at the University of Amsterdam.
It is very well possible to live in Amsterdam, or any major city in the Netherlands for that matter, when you don't speak Dutch, but do speak English. You can find information about Coming to Amsterdam on the University's website as well