A* is fine if you have a single moving object navigating a static scene. Problem is that most game scenes aren't static so you either have to recalculate on eve

A* is fine if you have a single moving object navigating a static scene. Problem is that most game scenes aren't static so you either have to recalculate on every movement (very expensive) , break it down to smaller paths (possibly leading to very sub optimal paths) or wait for it to get stuck (at which point it might become impossible to be unstuck).