This server is called PGMC World and it has three different ways to play. You can join survival or creative or vanilla. You just switch with simple commands.
In survival you can focus on normal Minecraft style. You gather stuff and try to live and build with other players.
In creative you can just build what you want without worrying about resources. It feels like a good place to test builds or just mess around.
In vanilla you get the classic Minecraft experience. It is like playing normal Minecraft but with other people around.
The server makes it really easy to choose your playstyle so you can swap to whatever mood you are in that day.
