Hey, I will show you a few of my tricks for successful games.
Before you start I hope everyone finds this helpful. Enjoy. 
Hiring Developers
Hiring developers is simple you can find many here at the DevForum, you can also search for developers around groups, development studios and etc.
Good Payment
A good payment will be something like splitting 50% of the group funds to everyone. Good ppayment can be something like:
10-15% - Builder
10-15 - Scripter
5% - Tester
You get the idea. (I think…)
Tips for advertising
So you can advertise it or sponsor it, this is a good option - but remeber the GFX at sponsoring is really important, in advertises say you hire Moderators or MR-HR, or the most working way - “Do not click me” or “I bet you cannot click me twice.”, humans are doing the opposite they are told. Some of other examples are for a obby, it can be something like: 1% of players can complete the game. I think you get the idea…
Attracting more players
Yes - this is diffrent then advertising. To start make a badge “You joined the game” - free badges attract more players. Also a tip add a few hidden places they can say something like:
Name of badge: You Found The Secret Room???
Description: No one can find it, but you did???
This is example of the info, there is more like:
Also for every version you make, make more badges.
End
I hope you are glad with what you learned!
More useful links
Protect your group from spam
Developing introduction (teddyHV11 version)