How did I die? Which time? The first time I entered a new biome the tougher monsters usually killed me very early on because I hadn't yet figured out how they attack and because I was still in gear that was suitable for the previous biome because I hadn't yet gotten any resources specific to the new biome to make the better gear required to survive the newly entered biome. Kind of a catch 22 in that respect. You had to survive the biome to be able to get the resources required to survive the biome.