Currently playing Neverwinter on my PS4.
The game itself is free and the gameplay and graphics are pretty good. It even has a very acceptable character creator although you do need a PS+ account (assume you also need an XBox Live account as well) since it is on-line only.
I looked at the PSN with regards to this and there are some DLC packs (they may actually be pretty good value for the money though) which do cost and if you are stupid or have more money than sense you can even purchase in-game money.
As far as gameplay goes the game plays fairly smoothly and there seems to be allot of people playing it. For the first few hours (this is an RPG after all) you actually grind but it's not that bad since the quests you are given are fairly easy and interesting. What is a bit blatant are the hints that you can do so much better if you purchased particular items although on me it's like water off a ducks back.
So far I have played over 15 hours solo and am now at level 18 (you do level up slowly). Coming from playing the Souls and Bloodborne series the game is fairly easy and I only died once mainly because I was getting tired and I made a stupid mistake. Diving headfirst into a room of savage orcs and getting cornered will do that to you. 
Personally, I would recommend Neverwinter for those who like RPG's but I would be very careful about the micro transactions since they can really eat into your real money if you give in to temptation.
As an aside, I have also been playing "Child of Light" on the hardest difficulty and IMHO it is a really good game however you can also buy from PSN different types of gems which can be used to improve the attributes of your characters. I actually did a simple calculation to get what is called the Princess gem and if you purchase the appropriate packs you would be spending over $30 AUD just to get one Brilliant gem and If you want to upgrade all your party you could spend well over $100 AUD. (about $73 USD) .
I can understand paying for DLC in the form of extended gameplay such as what you can get with "Hearts of Stone" and "Blood and Wine" for th Witcher3 or "The Old Hunters" for Bloodborne since they do add to the playable length of the game but paying for items when you can pick them up during gameplay is really just targeting the weak at heart.
PS. Definitely liked Kat in Gravity Rush. Some of those challenges were quite tough. I found the Dual Shock 4 six axis control really does help with targeting quickly.
