I never used Playables and Timelines in previous version. And I just tried the feature. I have a question about the functionality: Is this "Playable" designed to "help create an Animator" or it's a replacement for "Animator"? All the tutorials showed that this feature is similar to Animator. And, If I want to achieve level design like "at 2 second point show this enemy" and "at 10 second point show a bird fly through sky" these stuff, should I use "Playable" system or just write my own code in Update? One more thing: can I generate a "Timeline" at runtime? For example I get a json from internet, and I create/generate my own timeline according to my json string, during runtime.