What motherboard, ram and graphics card can I use in Acer aspire XC-603 desktop for gaming

Hello, new member here... I've had the desktop for 3 years and don't really use it for anything but have recently learnt a game I used to play has been remade by a different group, and have started playing again, however. It is slow. Bit laggy, like.. Not internet lag, as in. I'll move but it'll temporary crash before carrying on Again, this makes it fairly hard to play as it requires alot of moving, clicking the mouse buttons and loading screens between areas, I have the game set to lowest settings because my pc can't even run browser programmes properly. I've done anti virus and malware scans and all come back clean. I'm running Windows 10, Intel j1900 processor, HD graphics card (built in) 4gb ram, 1tb HDD. It has Bluetooth, wireless internet but I use Ethernet cable, and a standard monitor. 


Ideally I don't want a new PC, id just like to (hopefully) have to remove the motherboard, put a new one in that allows the addition of a recent graphics card, processor and ram, my friend whose very very good with computers says that I'd be able to remove and replace motherboard, put a new graphics card which is more recent, and capable of playing games, a new recentish processor, and ram. 

Now, I know nothing About PC's. I trust my friend, he says it's possible. So if it is Indeed possible, could I get some suggestions for motherboards and graphics cards processors and ram?

I'm in no hurry to acquire all the stuff as it's just been Christmas and I'm skint like alot of people, I'd just rather not spend like 800quid for a whole new computer for gaming, I'd like to just put new motherboard in my current one and put a new graphics card in it, 

So I'm really just looking for suggestions on motherboards and graphics cards, and rams and processors, the game isn't demanding at all. Like, it got released this year, but the company who made the original decided to stop doing the game few years ago, and a new group took it on and have finely got it open to all and not just beta, I really want to be able to properly enjoy it, even on lowest settings, but I have no clue about PC's as you've probably figured out.


So Yeah, just want to know if and what motherboards would fit and carry what I'd like it for, which graphics card is suggested, and of course processors and ram. 

I am running Windows 10, 1TB hard drive, don't know CPU, whatever the XC603 CPU is, not near my PC right now as it's late, and Ethernet cable. The graphics card is I believe. Intel HD graphics card. The unit cost me about 189 3 years ago in Argos. It's done very well but I'd now like to change motherboard out for one that can accept more ram, a graphics cars, and processor stuff. (Which I honestly have no clue about) so I'm looking for help with upgrading it via a new motherboard. 

A new HDD isn't required as there's barely anything on the pc. World of Warcraft, anti virus. Malware scanner, Firefox chrome and edge (Firefox because some sites I've come across lately won't work with chrome or edge only explorer, which is no good for me as it's w10. 


Thankyou and sorry for such long post. Merry Christmas all. 

Here are the games specs; 

Hardware	Minimum	Recommended
Operating System	Windows 7 / macOS Yosemite1	Windows 8 or newer / macOS El Capitan (10.11) or newer
Hard disk space	800 MB	2GB or more
RAM	2GB	4GB or more
CPU	Dual-core CPU	Quad-core CPU or better
Graphics Card	OpenGL-compatible card with at least 256 MB of graphics memory	OpenGL-compatible card with at least 1 GB of graphics memory
Internet Connection	Any internet connection	Broadband Connection or greater