I'm going to say in advance that the game probably isn't for you. (1) It's by Monte Cook Games, based partially on their Cypher System, so it has the sort of meta-currency that could trigger your simulationist sensibilities. (2) It's a weird surrealistic urban fantasy setting, where our world is the fake world and the game setting is the actual world. (3) Also, it's a bit of doozy, being something of a notoriously pricey premium product.
The Invisible Sun box is $287. The
PDF of the contents is $87. There is, however, a
free preview.
Moreover, I would also argue that the game is a bit too Byzantine for my tastes. It hides a lot of its game behind a bunch of needlessly wordy text and terms. It's a good game, but it's still a case of style over substance.