The best First Person Shooter

[Googolplex]

Normally I do not play ego shooters, but actually I tried one: Call of Cthulhu.
Seems like this game is a really good "pearl" in the genre.

- extremely scary
- very good atmosphere
- heavy story
- many puzzles & adventure elements
- nice gameplay & action events

What people should know, it's made by the creators of Skyrim.