The most popular one for that sort of thing is Gilgamesh , but you probably can ' t make a character there because it ' s locked from character creation 99 of the time . Though if you want to spend money , you can transfer from another server to it any time . Take a look at some less huge worlds like Leviathan , Excalibur , Sargatanas , or Hyperion <| sep |> Focus on getting the personal robo port and he mk 2 armor . Once you have that you can build massive walls in a few minutes . Until then I wouldn ' t expand too much as it will be a lot of work . Just grab an oil field and wait for the science to complete . Also automating bullet reloading will help if you are going to keep using gun turrets or if you have enough power you could switch to lasers as they are maintenance free but can easily suck your power grid dry if you aren ' t prepared .