Iterations (or Sprints) are like mini projects by themselves. They often include design, coding, asset creation, tuning and debugging. However we are not always producing full vertical slices of a game every iteration. We’ll use a an example of what we might deliver for a team which is focused on creating AI behaviors: One of the most difficult aspects of AI behavior is navigation in a complex environment. The AI logic has to identify objects that will prevent the NPC from moving and calculate a path around them. Throw in some other moving characters and objects and the problem can become very complex to solve. Navigation can become the most riskiest problem to solve AI and therefore one the the riskiest problems to solve for the entire game.