Complex sentence: Against his will and knowledge, he becomes a performer in the godgame and realizes that the reenactments of the Nazi occupation, the absurd playlets after de Sade, and the obscene parodies of Greek myths are not about Conchis' life, but his own.
Split into simpler sentences: Against his will and knowledge, he becomes a performer in the godgame. Eventually, Nicholas realizes that the reenactments of the Nazi occupation, the absurd playlets after de Sade, and the obscene parodies of Greek myths are not about Conchis's life, but his own.