About seven minutes into my second play session of Vorp, a new space-themed arcade shooter from End Games, I realized I had broken a light sweat. And the funny thing? I loved it. For a moment, all my professional questions about replayability and graphical prowess faded away in light of that one miraculous fact. Here was a promising game on Facebook that wasn’t shying away from action and a light challenge, all while making its players forget that they’re playing a game on the social media juggernaut. While it’s still very much in development, Vorp has a solid foundation here for a hit.