I heard some gaming developer really enjoy using adsense on their gaming site so what is actually the benefit of using adsense on the gaming site?

Well the same benefit as using adsense on any siteL you get paid for clicked ads on that site. From what I know technology related ads are the most profitable so since gaming is related to technology it must be paid good as well.

It is for gaming site but it is not for gambling sites.

yes i realy enjoy games specially action and advanctures games. Evening daily 2 to 3 hours free and enjoy games. adsense good cpc rate for games sepcial acrade and action games.

for me adsense am not doing very well in my website gameynator.com I am not sure why maybe because i'm using stumbleupon which yields high bounce rate for me