Update 10/29/18: This Kingdom Come: Deliverance mod has been removed as it is undergoing extensive changes by the creator. Not sure when or if it will be returned, but we've opted to leave it in because if it is added back, it's totally worth it.
You asked for it and now it's here -- an overhaul of everything in KC:D; this mod tweaks the difficulty and balance of the game.
Dark Times boasts a rougher economy, slower level progression, more challenging combat, and an improved perk system. If the base game wasn't hard enough or you felt it needed some tweaks, this is the mod to try out.