Many here have asked the question of pc requirements.
This is from Can I Run It. Should be pretty accurite.
This tells you, any onboard video computers will most likely not run it, needs a dedicated GPU.
Unless you have a newer card, most likely you will not meet recommended as it will probably only have 1 to 1.5 gig of ram.
That is not saying the game won't run, it's just how well it will run. I have run many games with below minumum requirements. Turn down the screen resolution and it may work ok. Example, won't run at 1920 x 1600 but may at 1024 x 768. I run here using 1440 x 900. And this computer is not that powerfull. It would meet minimum above, but not recommended. My gaming rig is way above the recommended above.
You will be fine with direct X, as most newer graphic intensive games are using 11 and some 12. Some are still only running 10.
Steam runs pretty good compared to some of the others out there, as I believe this is hosted on steam. There is where the cheat software WILL BE stopped. You getting kicked there and your game will now be useless, as they won't allow you back on the site.
If you are not already a gamer, you are in for a new world of online gaming. Nothing like you know from WGT.
Good Luck
Oh, and as a side note. If Steam is down, so is your game. I don't believe this is a stand alone game, as most anymore are not. Only some files are actually on your computer. Most of the game is on Steam.