The 360 version of Risen is a complete mess. I can look past graphics to a certain extent, if the game's good but they're abysmal and if you're not playing in 1080i/1080p connected with a HDMI cable - forget it, the game will be so dark that you'll have proplems seeing anything and text will be difficult to read too and the way they configured the controler is terrible, maybe it's just me but it seems that they went out of their way to make the controls as alien as possible, I just couldn't get to grips with it and compound that with the fact that the games combat is tough, didn't make for an enjoyable experience.
I'm now playing the PC version and even with my crappy Radeon 5450 graphics card it still looks 10 times better and it'll be improved on even more tomorrow when my new graphics card arrives. I'm even playing using a 360 controler which I've configured myself, although there's nothing wrong with the keyboard and mouse set up.