Browser games?

Is anyone here playing any browser games? They are pretty fun, at least I think so, to kill some time when you have nothing else to do or if you are just bored. If you play any browser games which one are your favourites? How often do you play them?

I only play Agario and Slitherio from time to time. Mostly Agario but both games are good for some casual gameplay. Anyone else who play them?

I've been playing rollercoin alot rn