So I have this idea for a plugin! Some of my users liked the peaceful mode in Single player. Whenever they would build stuff outside, they would turn on peaceful mode. This gave me a idea for a plugin. This plugin should toggle peaceful mode in SMP every x days. For example I would configure it so that you would have 1 peaceful day every 2 hours. A day in Minecraft is 20min so that would mean that you would have 5 normal days (&nights) and 1 peaceful one. When Peaceful mode is toggled there should be a shout in chat with for example, "Peaceful mode is on, it is safe to go outside!" The plugin should have some easy configuration file with the amount of days and the text displayed in chat. I do not know if this is possible, please let me know! I think that this idea is possible to make since there is a monsters=false/true line in the properties. And a day/night cycle counter shouldn't be that hard to code, right? Displaying a chat message is very possible, loads of plugins can do that. Oh and if someone likes this idea and decides to make it, please mention my name somewhere. =P Edit: Events could be added too like suggested below!