I am chilled out, I'm simply just pointing out the truth. It's still sinful and wrong, even if Catholicism is used in this way for entertainment purposes and commonly used as a trope. That's not a good justification to say it's OK and it's "just a game." Would you take your parents, or loved ones, and make a game and turn them into bleeding, eye-less, murders?
The problem is most people are completely blind to the seriousness of the spiritual life, and how significant the office of religious life (priest, nun, etc.) is, thus we get stuff like this. That's why I had the need to say something, because a nun is someone who is completely selfless, giving themselves entirely to God, by consecrating themselves to our Lord and the Blessed Mother, thus living a life not for themselves, but for the sake of others. A game portraying a satanically possessed nun, going around killing people, or whatever her role is in this game, is really disgusting and outright blasphemous, and is an outright lie to who a nun actually is. Games and movies like this twist our from truth to lies, because this couldn't be more far from truth.
It's not just a game, because making a game like this has consequences: opening our hearts to the demonic and possibly getting possessed ourselves, thus furthering ourselves away from God. It's a spiritual suicide. Just talk to any exorcist, and you will come to find that a lot of people get possessed by getting involved in things like this game.
The satanic is not to be taken lightly.