https://plarium.com/en/plarium-games/
Have you tried the Plarium Applicatio? I have it on my PC and it does not crash like all the browsers and Flash. It seems much more stable.
I was going to give it a shot, but after seeing this.....http://prntscr.com/fb99pf I think not.
I have the commercial version of AVG professional and it worked fine. I don't know why AVG flagged it for you. It was not flagged for me. It may simply be that it was an exe file.
As you can see in the upper right corner is the Plarium logo and there is no browser running. By all means wait for the AVG analysis to come back saying it is safe.