Good morning all!

Having read most of the Batman comics, most of the books, having watched all the movies (Jack Nicholson is the best Joker and I will proudly die on that hill) and every animation series (I think) I realized the time has come to dive into electronic entertainment. I have a decent PC that I use for work but I decided to try PC gaming as well. I saw there are very good deals for Batman games on GG.deals but I have no idea where to start. Which game should I buy? Or perhaps should I buy all of them? But if so then where do I start? I am a total newbie when it comes to gaming but I would like to give it an honest try. Thank you!