After whipping up a game to test out the capabilities of GameGuru with a couple 'a mates, I realised that GameGuru was required to play our multiplayer maps with others. Obviously this is a bit of a pain if most of your friends are more into game-playing than game devving, so I had a bit of a look around for plans to integrate an alternative means. I noticed a "Free Multiplayer App" mentioned on that feature voting page, but personally I'm not sure about this either.
I understand the intention is to use Steam servers to make joining games a lot easier (And the hosting of any kind of master server) but I feel having an app like this takes away a bit of professionalism in regards to releasing the game to the public; makes the game engine seem more like a simple map maker for another game.
I really would like to see some kind of check box in the future before the build process with "Utilise Steam Servers", whereas if it were unchecked it would allow the saving of a stand-alone that could host and connect to servers itself, like we saw with the original FPS Creator multiplayer - even without a "click and connect" capability, I would be more than happy to have a simple "Connect to IP" functionality.
Anyway that's my 2 cents, I'd love to hear anybody else's take on the topic.