You might want to specify some more details – like do you see this as a game that you would play in a browser, or something that you would download and play, or something you would play on a cell phone?
Do you have an idea of who the target player population would be? That would probably answer the question above…
Also, what makes you think the game will catch on now if it didn’t before? Is it only because it didn’t get exposed to a wide enough audience, or might there be problems with the gameplay that would need to be tweaked? Are there existing games out there already that are more-or-less the same game? Do you have the rights to make a commercial computer game based on an existing intellectual property?
I am not trying to be nasty – these are just the first questions anyone will likely have – especially potential publishers, who receive hundreds of game submissions per month. Like any business where you are trying to sell a product, you have to do your homework before trying to develop it.
All of these questions are moot, of course, if you are not trying to develop a commercial game but just want to do it as a hobby…
While I don’t have the personal bandwidth to help you myself, I wish you good luck! 
