Okay, so there's some confusion here -- that may in fact be the cause of a recent argument I've had -- but in this case, it's pretty clear that you're just confused and not necessarily malicious, so I'm here to correct your confusion.
This isn't a TTRPG. It is a game system. Those are not the same thing. A TTRPG has a setting and lore. A game system is (usually) setting-agnostic -- which this definitely is. All TTRPGs will have a game system, but they are not one and the same. For example, Call of Cthulhu is a TTRPG that uses the game system Basic Role Playing (BRP); Vampire: The Masquerade is a TTRPG that uses the game system Storyteller System.