[dpcan]

These are surely the feature sets of many successful games, but they didn't all start with hundreds of achievements, hundreds of levels, and so on.

The most successful games started with an original idea. People like the game, so they keep adding and improving.

The real secret to success is keeping your player coming back for more, giving them more opportunities to talk with their friends about it, tweet it, or get seen playing it in a social or populated location.