Pretty entertaining gameplay with just couple flaws
During investigation you encounter with various strange things and beings of witch just few do not mean you any harm. As your enemies get stranger, you need more tactics and ways to "deal" with them. That's where the interesting part of gameplay comes in. Not only you have various uncommon weapons witch are rather pleasureful to use, but you get your special abilities, like striking lighting or special vision which you can upgrade with amplifiers and scrolls.
However the maps are built a bit bulky for today and load screen pops out too often. But one real minus witch doesn't count as an effect of passing time is controlls, witch were a bit difficult to deal with when you are trying to pull off trick where you use all your powers in max efficiently.
Anyway, the ways to fight with your enemies, interactive ( most of the time ) surroundings and interesting story make this a pretty well done game, witch I recomend to play.