Shadenuat

Interesting drinks and food with some fluff text could give better idea about the setting, but concidering there would be party of up to [insert speculation here] characters, feeding them all would be a chore so it should be avoided. Things like that work best in games with one character focused on survival (F:NV) It could be just done in manner of amount of actions character could do per day, with any system like vascian or just stamina, there is not much need for specific fatigue stat in a party-based game. Usual problem with that is that time in game and time in player's life are asymmetric, which leads to stupid gameplay where player could finish some dungeon and quest and wants to go kill more stuff, but his character has full "sleep" bar after an hour of activity. Overall when it comes to stuff like hunger and sleep people think about immersion first and gameplay second, while with party-based game we should think about gameplay and what all that would add to combat first.