@Madamelee I'm not sure about an extension for mobile games to play on PC.
Here's a food for thought, I am an on-the-go gal who looked into my gaming laptop last year before the pandemic started in my neck of the woods. I bought mine on Amazon where I could do payments. I use an ASUS and play a lot of high performance games that need high graphics and a punch to not receive slower frames during the gameplay. Before buying my gaming laptop I played Subnautica at its lowest graphic setting and it was awful. *nightmares*
When shopping, its like shopping for something that is uniquely yours. My car I bought fits my needs just fine and I don't need all the fancy add ons. My phone cares for my Smart devices in my home and assists with everyday tasks. Shopping for a computer is just that. I tracked and made notes of each game I play that can run promptly in addition to read through Steams Spec logs that assist with each game. This includes, The Long Dark, Subnautica, Subnautica: Below Zero, Planet Zoo, Farcry: Primal, Life Is Strange, and ALL The Sims 3, Sims Medieval, and Sims 4 games. What I did was because my internal hard drive would probably sob adding all of those games, so I bought a 2 TB external hard drive to pop in the USB port. All the games: Origin and Steam alike have been moved into an external hard drive where I can play them freely without worry. I have far too many CC and mods that are in my internal hard drive but its not a huge worry.
I'm sure my needs are different than yours and by glance your looking into a tower. Reviewing a few of the Spoilers I have not heard of showed 15 GB of space. So one TB equals to 1,000 GB. It is ideal to look into a 64 bit computer but I believe newer computer have upgraded to its fancy for that bit as games are on the rise and continue to do so. My graphics card is GeForce and it was a recommendation made throughout all the games I play with how the game and computer can run in unison without lag. If it does lag by chance I learned I ignored an update somewhere. Lol. My retired Lenovo I had was not the best graphics card (realizing this when opening Subnautica after its first BETA release) but somehow still ran Sims 4 and Sims 3 on high graphics just fine.
Food for thought. Good Luck and I hope you find a computer that works for you well.
