Windows crashed and won’t restart

I have a custom built pc (I can list my parts if needed). I was playing an unoptimized game that kept freezing, then eventually crashed my pc, bringing me to the blue screen telling me it will restart for me after sending crash info. I waited for a while then realized that my monitor was just grey, so I waited for longer. After about an hour I tried turning it off and on again (because I’m stupid) and it went back to the grey screen. However sometimes when I restart it, it lets me go to the bios or just stays on the screen showing the “pro series” and the logo. It doesn’t get any further than that. What can I do, is there a damaged part, is there a way to get back, or did I just murder windows?