There is currently no one playing right now sadly to say. The game is still in development, and although it looks like we may get to jump into something soon there is still not a date.
The earliest you could possibly get in is if you buy something that gives you Alpha 2 access (since Alpha 1 isn't available in any forms anymore) but unless you want to be a part of development I would simply buy a pledge package that will fit your playstyle.
Let me know if you have any other questions :D