It's wonderful that you plan to make strategy based on brothels (although to be truthful one of my project is also strategy with brothels (or in the end will, currently i'm creating framework for animation and same basic art)), but as you wrote on your blog that you will use C# + XNA, whilst C# is definitely better choice than rpg maker (the only plus of rpg maker is amount of resources), but my question is XNA isn't support for it is discontinued or am I wrong? To be truthful i myself use unity engine, not because it's amazing engine, but rather because it's use c# and also able to use Visual studio C#, also not mention the amount of assets (and there is one especially useful which appeared in January, which allows to use/load vector art during runtime and modify it's nodes/styles/etc. so basically for game which would have a lot customization and ability to easy mod a base game it's great asset).