Solved: Game sounds

Hi All

Just got myself a HTC One 801s phone:D and when playing games I can not find an option to turn the sound off while playing. On the iPhone I had before, there was an option on the page the game loads, I have also been to sounds options on the phone and there is every other option you can think off except to turn (only) the game sounds off.

I have looked through the few little pamphlets that came with the phone but can not find anything that covers this

I have done a bit of a search on the net and can not find anything on this subject, is it possible to turn only those sounds off? Does this phone actually have this feature?

Any tips much appreciated