<Inscryption!> Is this a post-game of a post-game, I wonder?

Inscryption 7

Inscryption is a 2021 roguelike deck-building game developed by Daniel Mullins Games and published by Devolver Digital.
Developer: Daniel Mullins Games
Platforms: Nintendo Switch, PlayStation 5, PlayStation 4....
Initial release date: October 19, 2021
Mode: Single-player video game
License: proprietary license