You can give your players incentive to do things, but if it’s not the incentive they’re looking for they will probably demonstrate it by their in game actions. Some examples of player incentives include:
The Gameplay is the Story
Some advice to game developers on how to stop ruining good stories with bad cutscenes.
Batman: Arkham Origins
A breakdown of how this game faltered when the franchise was given to a different studio.
The Game That Ruined Me
Be careful what you learn with your muscle-memory, because it will be very hard to un-learn it.
How I Plan To Rule This Dumb Industry
Here is how I'd conquer the game-publishing business. (Hint: NOT by copying EA, 2K, Activision, Take-Two, or Ubisoft.)
Starcraft: Bot Fight
Let's do some scripting to make the Starcraft AI fight itself, and see how smart it is. Or isn't.