Level 6 and I have already killed a level 105. It was outside my base and whilst I was exploring the forest a stego killed a raptor, so I took a metal axe and a few arrows from the raptors and went back to my base. I noticed a sarco killing a level 145 carbo so I hit it with my axe near its tail and killed it. I’m now level 16 and I have killed 6 high level sarcos.