I stumbled upon Blakestone on my moms Pentium 75 when I was very young, I have no idea how old though. But that was about as violent as you got back then. I'm going to guess I was in the age 8-11 range. The first console game I got that was very violent and bothered my mom was Turok: Dinosaur Hunter.. god I loved that game.. I would have been 12 at that point. Ahh yea forgot about Mortal Kombat.. i was likely 8-11ish when I played it as well.