I found this vanilla survival SMP that runs on a lifesteal system where fighting actually changes your health. If you kill someone you steal one of their hearts. If you die you lose a heart and when you run out you get eliminated.
PvP is on everywhere with no safe zones and no protection so you are never really safe. The world is huge at 150k by 150k and it is meant to feel untouched and vanilla.
It is also trying to stay fair with no pay to win and no overpowered kits or handouts. People will make alliances and then betray each other when it helps.
There is a statistics command so you can track kills deaths streaks and playtime. Chat is interactive too so you can show the item in your hand to everyone. The server version is 1.21.11.
