Mafia 84. Memorized it, turned it in, forgot it!

Olam Havel and 0xFF were involved, but the first didn't respond at all, and the second left only one line. Either they are indifferent and peaceful, or they are quiet Mafia players who don't rush ahead, or they are simply clueless. Overall, they are quite enigmatic. Why sign up if you don't want to play? Perhaps they don't want to stand out, but rather just observe.
Heroist and forgotten ghost show indirect interest in the game, fearing to influence anything specifically. Both admitted that it's a difficult puzzle, but the first at least tried, while the second makes jokes. I suspect both of them.

What's wrong with Hexan? And what about forgotten ghost? I think that one of them might be a Mafia player, paired with Heroist or Nebkom.