i was playing zombie cubes and i got of but when i shut the game, in my library it said it was still running. so i clicked the stop button, again, and again, and again. it would not stop. i tried to uninstall it but it did not, i tried to logout, but i couldn't. could anyone help me?...

I would really like to see content like More Maps. Workshop Mods. Etc

i tried to launch the game after downloading it but it just closes automatically, i verified the file integrity of the game and it still didn't work. Anybody know how to fix this?