Game Machine is the Unity3D of server side game engines. Massively scalable yet simple to use, and affordable for anyone.
Combine the ideas behind Unity3D + Heroku + Digitalocean, and apply them to multiplayer game platforms as a service. Game development is going through a minor revolution right now and old models are being disrupted. GameMachine will primarily serve the indie game developer market where this disruption is happening, although possibilities in social games also exist.