Hard Survival Mode was released in the Sons of the Forest 6.0 Patch and increased difficulty further. More cannibals will spawn on the island, and Mutants will begin spawning earlier. Food spawns will are reduced, meaning there is less chance to loot food from crates and fewer spawns for fish and animals. Endnight Games also reduced health and stamina regeneration speeds when cold and added a penalty for eating raw meat. But the real nail in the coffin is that crates will no longer respawn items on reload!