Nothing. It goes to a black screen (windowed or full screen) and that's it. No sound, no graphics. Like it doesn't start.
Weird, I'm on the same specs and works without a problem. Some options you could try:
- run it on a different browser Edge/Firefox/Brave/etc
- go to Chrome -> Settings -> System -> Enable Hardware Acceleration , then Relaunch
Also can you try opening other web games from this site? To see if it's a problem with this game only or something wider.