The setting is full of blanks. I mean, there's an interstellar civilization! The 'game' is extradimensional and mysterious! But instead of telling us how all that works and/or why the game is even important in the first place, the author prefers to describe the virtual setting within the game instead. We don't even know what the MC uses to play the game! A headset? A coffin? A laptop? The author tells us NOTHING!