If you are leaning toward any “game” associated with evil, or exorcism, or satan or demons, I first would strongly warn you to not do it. If you want to anyway, I strongly urge you to find a good, sober, wise and holy spiritual director to advise you every step of the way in your work. And I would advise you to commit to listen to him very, very carefully. Evil is not in any sense, “a game.” You would be playing with fire - or worse than fire, deadly poison - or worse than deadly poison, evil.
Eve and Adam would have been better off never entering into conversation with the serpent/evil - never entering into dialogue with one much more clever and cunning than they were. he knows how to make evil look good, and lies sound attractive and wise.
There have been other suggestions on the thread - I hope you will seek holy prudence in just how, if at all, you can use this medium to advance the work of God’s Kingdom. See, already temptations have come! Probably anything associated with evil would SELL. Foolish people delight in playing with evil, and playing with Truth and with holy things so as to make themselves superior to them. Such are the temptations of the evil one…
Be careful.