You can use your Dark Brotherhood crossbow to slay the souls of the innocent, or the Thieves’ crossbow to aid you in your days as a robber.
If you are a player who loves to mix things up with other franchises, you will enjoy the Witcher’s Silver Sword mod. Video games, movies, TV shows, cartoons, anime, toys, comics, and so much more. But note that all these mods are free so you won’t be paying a dime.