Programming of a space shooter game for Facebook

Hello together, You are bidding on a very simple space shooter game, as known since the 70's and 80's. However, there are some new social aspects that make the game more modern and "social", especially the Facebook integration. Attached you'll find a Game Design Document (GDD). The GDD should give you a clear vision where we want to go. Here are some key points: * We are a German Start-Up in the online game business. You can look up the German company register (German: "Handelsregister"), if you wish so. Our company's name is "VoidBox UG". In other words, you are dealing with professionals here (as you can also see from our rating) * You should finish everything in around 30 days. We will set weekly milestones and divide each weekly milestone in two parts ("mid-term") * We've had some bad experience with game development. We therefore do not pay in advance, or for milestones. We did this before and have "half-baked" games on our computers that no one can use. We are more than happy to release the funds when the game is completely READY. We might even pay you a bonus * The game will evolve in future. That means more power-ups and items must be added, the code must be well written * We need proper documentation and we will review your code at least once per week, maybe twice per week * The game must be scalable. We might receive 20.000 daily active users. Before releasing funds we will test the game of scalability That's it. If you think, you can accept the challenge, please bid. Read the GDD, thoroughly, it's just a few pages.