-Explore a Timeless World of Wisdom- Step into an afterlife teeming with historical and mythological figures: philosophers, legendary heroes, poets, and thinkers. Yet, no one remain? All that remains are the books they wrote, the notes they left behind, and some prisms—Echoes, replaying past conversations, that may hold the key to understand. Understand what?

-Experiment with the Ominous Boards-
A technology of this world — the Boards, are used for everything, from the most mundane task like opening or closing a door, to the more complicated ones like defining the laws of physic. Most of them contain puzzles and riddles created specifically for you. Why?

-Experience at your own pace- The main content to finish the game and experience the story is friendly to even the most novice players. If you have more experience and are looking for a challenge, there's plenty of optional content and secrets to discover. If you are agile enough you may be able to jump over some boards.
-Knowledge-based, non-linear, something-something-
The game allow non-linear progression depending on the knowledge you obtain and how much you decide to explore. External knowledge can help you, and I invite anyone to research anything they see and don't understand, but it is not needed and the game will always give all the tools and knowledge needed to understand and solve the puzzles, and you are never required to brute-force puzzles. At least, until you are.