Cinders - The Grim Fate Ending
The Grim Fate ending from the visual novel Cinders, where you die in the royal dungeon because you opted to poison your stepmother and were too suspicious in your attempt. For bonus points, you die alone and unloved because you didn't make any effort to befriend anyone. While this may sound too bleak an ending for a fairytale, I will point out that Cinders lived happily ever after... in Hell.
Per the store page "Cinders is a mature take on a classic fairytale with a heavy emphasis on player choices and role playing". It looks nice too. Unfortunately, we don't get to see how nice the prison cell looked. It's also a bit short and not too different (seriously, no matter which of the three ending choices you make Cinders will choose to go to the ball and dance with the Prince).