I am just worried that if the game doesn't run on my PC then I will waste my money. I can run GTA and Arma 3 alright and I only have 2 gigs of ram.

Hi, I saw this game a day ago and as soon as I saw it I bought it. I just couldn't miss out on the discounted price and the opportunity. However, it wasn't until today, whilst doing some research into it, that I might be unable to run the game. I don't regret buying it I just worry that I will miss out once it is released. So I was wondering if you can all help me. I am currently the owner of a laptop and that is it ,however I also have a really old desktop tower that has a few parts that could be re-used. So if possible could someone suggest to me how I could get my laptop ready for once it come out. I only have a YouTube channel as a means for income via ads and I haven't posted in ages so I haven't earned a cent in a long time. Also, as I am only 15 years old I don't have a job so don't have an income and only have £45. Any help would be extremely appreciated.