The atmosphere of Fobia made by the dilapidated building and the mysteries inside it gave me an unsettling feeling. Moreover, its story is intricate.
Technically, it mixes puzzles and action well. I found the former fair and not monotonous, the latter was manageable despite I'm hopeless at FPS combat system.
The game has few little flaws, but it's a valid horror game.
Since this game was made by a small team of eight people in Brasil, country with limited and expensive resources, I hope that GOG could contact the developers to preserve and give us a DRM-free version of Fobia, because this game is valid and its developers deserve more visibility for their efforts.