Invisible Sun is a surrealistic modern fantasy tabletop role-playing game written by Monte Cook, published in 2018.
[1][2][3] The "game developers also created an Invisible Sun mobile application (really just a website) to accommodate side scenes for individual or groups of characters that are away from the table and even possibly without the GM."
[3] Reviewer Luke Finewalker commented that the Black Cube was elaborately produced and quite expensive, which together with the advertising of limited availability expressed a certain exclusivity.
[2] Forbes contributor Rob Wieland judged: "Invisible Sun is a dense game that rewards in-depth meditation on character", published in form of "the strangest boxed set ever created for any medium.
In his opinion Invisible Sun is not suited for fans of simplicity in games, but "a truly incredible display of creativity" and fascinating to read.