Tansio Mirai TSMR-2 IEM

Yes you can. But I'd recommend over ear headphones for gaming as they have a wider soundstage and you can take them off and on easily. But if you want to go with just IEMs for everything, then the mirai are a good bet. It's a very interesting design, that you can tune them a bit. But this will introduce another possible point of failure, as intricate technologies are less robust. I have tons of IEMs and Headphones at home and sometimes i play games with my Shure SE535 or Massdrop+ Universal IEM I hope you'll find something that suits your needs.

You know what they were asking, no need to be rude.