Honestly I prefer the idea of the original Don't starve world being explored with your group of 2-4. Rather than amping up difficulty to try and balance the game, you should look at it from the perspective of the team. What feeling would better than the catharsis of defeating the world one issue at a time with your dearest comrades. Of course this doesn't mean the issues will always be world created, say somebody accidentally angers a spider queen and gets themselves horribly slaughtered. Such a sight would not be very pleasant to witness, in fact it could be quite traumatizing. Not to mention experiencing such a feat wouldn't leave you in the best mental condition, especially if a friend decided to return you to the world of the living, who has ever heard of somebody coming back to life in a condition anything better than critical. While that would be all fine and dandy with more friends by your side, that would leave the natural hostile wildlife feeling threatened, so they would definitely try to up the anti with their own growing numbers, and perhaps even get a little TOO adventurous if their numbers keep increasing. Just imagine Jim, Sam, Kim, and Dom all sitting around the fire pit one night trying not to think of the fact that there is little to no clean food for them to eat, when suddenly the spiders they have been ignoring start coming to purify their homeland from the human scourge. Sam dies and the spiders still seek blood, until morning comes around, sending the once attackers retreating back to the safety of their nests, All the survivors have left is a dead friend, some silk, about 20 monster meat and a few wounds. Jim begins reviving the Sam with the teams last few berries, rocks and finest spidery silks, while Kim spends her day scavenging for things to cleanse the pile of tainted spider meat they came across in hopes to keep the team filled for just one more night. Dom on the other hand thought it would be funny to take a little revenge on the spiders, but after seeing his friend become nothing more than a pile of items after the spiders invasion, he was not exactly mentally prepared to deal with any spiders... let alone his shadows. Weeks pass and they barely survive on their their rations of food and sheer perseverance, until one night the ice box was empty. The berries have not regrown and all the carrots in a 50km radius have been consumed, the survivors scatter in an insane search for food, one by one they starve or perish to the environment, until the final two survivors meet. Desperate for food they gaze at each other, but don't see a friend, merely a meal. You would have to be insane to eat another person, but you would have to be REALLY insane if you didn't know it was a person at all. tl;dr Food is even more scarce with more people. Having friends can be good to stabilise your mentality, but it can also diminish it if something were to happen. Spiders feel threatened by more people. Basically the more people you add the harder the world will be to survive in anyway. Another mouth isn't always equal to another set of hands.