> no sound or music
Yeah, soon (not soon)
> skill reset
Skill reset doesn't have hotkey, you have to click on (X) . I guess using text for the button might be a bit confusing.
> STR
Treat each point invested as an attack percent multiplier. Though each point does give you a of flat value (0.1~0.2). When max STR/INT you get 10~20 atk and 100% multiplier bringing it to 20~40. And the design is intended to make you rely on your gear.