Without going into too much detail, I'll tell you this: Get an Intel CPU (i5 4590 would be great), Nvidia GTX 760 (a 750ti might work too) or an r9 280 if you prefer AMD graphics cards. You can go with better ones, depending on your budget. 8 gigs of RAM (dual-channel) Kingston Fury Red series is nice. 550w PSU, at least 80+ bronze standard, corsair 200r is a nice case. An Asus or an ASRock motherboard. You didn't really specify how much you are willing to pay, this will cost around 800$, maybe a bit more maybe a bit less.