It is 100% fee! It is 3gigs. You have nothing to lose.
Download it , do the tutorial and come back in a month or 2 if you don't fancy playing it now. As you earn 40k skill points (called EP) per month.
If you do try it, go the whole hog and join a PVP corp and get on discord and comms. And get 3 accounts and play them all at the same time. The game is a bit slow at first and at times but if you are occupied with 3 or more accounts you have plenty to do.
If you carebear alone on the non-PVP islands you will get bored.
It is like Eve but it's Robots on land. The PVP is much better than EVE as there is elevated terrain and WASD is required. No "Keep at range 2000" like in EVE and letting the FC warp you around.
It's on Steam. You have nothing to lose. Download it NAOIW!!!!!!