Now I have no idea the capablities of modding in Don't Starve so i'll just throw some possibly abstract concepts.
-Focus on the penalties of revival, perhaps make them less intense, perhaps even spawning with a life giving amulet or being able to enable a Touch stone to spawn close to him when he begins the game.
-If you are able to add chara (in the same way Woodie changes) Make it so when He's Frisk he loses Sanity when he kills innocent creatures and when he's Chara he gains sanity when he kills innocent creatures and Hostile creatures alike (Course this could be a very touchy thing to balance)
Like I said, I'm not 100% sure how modding works so alot of this could be out of you're control. Regardless keep on it, glad this mod is being developed.

He should be able to craft temy armor

being able to craft the heart-shaped locket and the worn knife (when you go insane the knife becomes more powerful and turns into the real knife temporary if thats possible to do)

I suggest Frisk being able to either craft the armor and weapons from Undertale, or being able to find them on the skeletons or lying around everywhere

(emphasis on the tutu)

(love the tutu, dance in the tutu)

I don't know if there's a way to do this but I think Frisk should transform into Chara when they kill enough enemies.

How about being able to craft the human souls and you can use them for bonuses like damage boost or hunger fill.

I agree with McVee, with low sanity turning frisk into chara, but maybe you could consider using a system like the naughtiness points that spawn krampus in the default game? perhaps when you kill a certain number of mobs (like in undertale) you could become chara similar to undertale treating the game as a genocide run after slaying monsters in the ruins. Just a couple thoughts

Permanent max sanity reduction and max health increase for every kill (bigger increase/decrease for more powerful monsters), up to a point. Increased damage multipliers at certain thresholds (perhaps based on the increasing max health?). Having no kills should give you a special benefit for as long as you stay pacifist.

No need for fancy graphical changes/transformations until you can work out how to emulate the LVling system and balance the pros/cons of going pacifist or not.

As for what the benefit should be, perhaps the ability to befriend or at least turn neutral hostile creatures? Maybe even include better sanity regen 'aura' from friendly entities as an incentive to befriend them.

how about simply making chara her nightmare form, where they have higher damage or some health regen? not something too op though.

I think also reducing the sanity loss from certain monsters would be nice because they remind Frisk of its old friends like the Tallbird (Loox), Ghost (Napstablook), Merm (Undyne) and maybe spider (Muffet)? Perhaps flowers dont give sanity or evil flowers reduce a lot more because of Flowey ? Something with volt goats too... :p

that's all i really want tbh, i dont want this to be some extreme mod, just a simple CHARActer i can play with.

The monsters attack you if you got so much LOVE c:

Like Evoland 2,summon CHARAters from the game to do a single special move so Frisk won't do the fighting and charge it back up AND REKT YOUR SURROUNDINGS WITH THE PASTA GOD PAPYRU

I HAVE A SUGGESTION, MAKE A TEMMIE CHARACTER


Also, if you kill too many monsters, 2 much love 4 u, monsters attack you like all the time

Why not start Frisk off with a bandage item or the ability to make bandages? (In terms of healing capability, bandages would have greater healing potency than say a fistful of flowers and/or be easy to make for a cheap and quick healing item..?)
Mayhaps another thing to add to the laundry list of things that you're going to be expected to to work on for this mod, but just inputting my two cents for the sake of this discussion. If this does come to fruition, that would be appreciated.

Should make sans appear randomly in the world, along with papyrus. They are stationary, and in trade for gold, Papyrus will give you speghetti.

Originally posted by Kooopa:

Of course the top things at the moment are,

- figuring out how to add Chara (not sure how I'm going to do that)
- adding the knife,pie, and stick

If you have any other ideas post them here!

Make it so it fits in with sanity. When you loose sanity you become more and more like Chara. Turning the stick into a knife and giving you more damage but at the cost of more and more sanity as you make use of your extra power.