I want to set up a Minecraft server with a couple of slight modifications. It will be a survival mode game such that dangerous creatures start spawning only after someone has manually lit the first light somewhere in the world. Prior to this, the world would be completely safe, but have an abbreviated day that provides only weak illumination.
After someone sets the first torch, you get a regular day/night cycle, but monsters will aggressively inhabit the land. Ideally everyone would then hunt this person to punish them.