What do you consider most important in terms of AI and gameplay? A lot of modern games in fact have much more code and budget for AI and gameplay than all older games, but they're perhaps spending the time on doing the wrong stuff? For example, in recent sneaking games the NPCs can move around doing natural-looking activities when they've not discovered the player, and so on, but in return the behavior once they find the player may be less believable. To what type of game elements, in your opinion, should the most effort in AI and gameplay go? Is the example above waste of resources or bad prioritization, in your opinion?