pi-natsuu wrote...
little question though, why does most of them involve lots of blood and someone dying?
Most of them involve blood and someone dying because that helps make the story better. Visual novels take their time to introduce you to characters and try to make you actually care about what happens to them, so using a plot device such as death or injury is common practice in the visual novel world. Basically they use it to make you feel some emotion while you go through the game.