Create a game is not just make the game, at least if you want to publish it on XBLA or PSN. First of all you have to fill a document called Concept Submission Form. This text should summarize your project in the following areas: company and funding overview, game genre, design pillars (key elements that drive the design of your title), key moments (highlights. In some way you are to going to spoil the person that has to review your proposition) and risk evaluation.
There are more points, but these ones could sum up your project to the publisher.
Sticking to the article, Tequila Works presented Echoes of Siren, from now on Rime (official name to this project unveiled at E3 2013) to Microsoft. Rime could have been a Xbox One exclusive instead a PlayStation 4 one, although Tequila Works showed Rime to MS, the company dismissed the project. Sony approved its budget and that was the start of a new exclusive for PS4.
The Concept Submission Form is the first path in a long journey to achieve your goal: obtain financial support and a publisher for your game. I will divide the most important parts of that document, the document that Tequila Works had to send to Microsoft to reckon the viability of Rime.
1. Company Overview: that’s a description of your company upon what you have done before.
2. Funding Overview: being straightaway, how much money would you need to create your product?
3. Game Genre.
4. The Elevator Pitch: an excerpt of the essence of your game in one sentence.
5. Design Pillars: key elements of your creation.
6. Initiatives: how the concept roll out along the game. In this case, I will just stand out this part.
7. Risk Evaluation: hurdles in your development.