I need some way of saving a world that users can create in the game i have no idea were to get information on this i tried using ArrayPrefs2 but seems to be not working i tired using prefs
but seems to not save vectors. So What do i do
And a XML file would be very large.
Any answers would help in any way and thanks for your time to answer or review the question 
You can use SerializeHelper to save any kind of data. Be aware that saving and loading is a feature that is not implemented in a “click-and-you’re-done” way. It requires a lot of work and research on your part, since no solution will be an exact fit for your needs. Prepare to spent at least several days on it. You will probably have to dive into topics lik fields, reflection, and serialization (the MSDN is a great resource).
here’s a tutorial that includes everything you need to create a save/load feature that saves and loads from a serialized savefile: