Huge groups, mostly a clan, or a group of OSRS gold friends. Will combine with cooks and stuff, and essentially make there team grow till they can actually make a dent in the society, which is starting form scratch in these worlds (by scratch I mean like people being royalty, or the market on these isolated worlds growing based on player influence).
Campfires could be created almost everywhere a fire is burning, since that probably means that there is a group with jobs in it. If someone were dying, they could go looking for a campfire. Hmmmm... kill the members of the campfire, or trade and barter for food? This could be your choice (weather changing is something to not suggest but just in case).
At nightime(possibly ), or whenever folks think it's necessary, camps would spring up around the cook, the firemaker, the woodcutter, and a couple of warriors/mages/rangers/all. Of course they'd still have to be wary of battle, even thier own campmates may not be trusted. It would be forbidden to enter a POH, so advanced woodcutters could create log benches, crafters could make such things and tents, and thats basically how camping would go, while still remaining PvP.
PLayer influence on the world and market. This whole idea sounds rather complex, but I will come right out with it. The amount of players on buy RuneScape Mobile gold the planet affects the amount of distinct tactics to get supplies, and there will always be the pkers. Among the simple fact that this could be a survival universe, I would love to execute something many before have said.