Tormentum - Dark Sorrow
As for the replay value, one must note that every moral decision the player will make in the game will will affect the game's ending. One wrong choice will actually make the player "lose" the game, and by losing means not passing judgment, and will condemn the protagonist to the depths of hell. There is no manual save button or checkpoints that you can go back to in case you make a wrong decision, so one is left with no choice but to replay the game from the start to achieve redemption. There are also 34 achievements that you can unlock.
Tormentum: Dark Sorrow is thoroughly successful in its attempts to build a disconcerting world to play through. Its tendency towards being somewhat on the easy side doesn't detract from the experience – by having puzzles that can be figured out through logic or trial and error, OhNoo allow even the most unskilled point and click players to progress through their twisted tale.