It is probably the most brutal MMO I think I've ever played. Your character has 1 life and if they die, that's it, dead as a doornail but the higher level they get before they die and the more dungeons you do, the higher your fame becomes.
At the start you can only make a wizard but get that character to level 5 and you can then play as a priest and so on. The Later classes require you to get characters to level 20, which is a daunting task in itself.
Controls are the standard WASD keys to move about and left click to shoot, that's it, simple but by heck is it hard.