I love World Creator, especially the vegetation distribution pipeline. You can create some very realistic fields with it. Im going to check out impostors too - ive seen it a few times and wondered what it's about.
Stupid Rental. My Zbrush that I haven't paid for an update in years and is perpetual Trumps that on all counts.
Cocos2d JS v3 Tutorial Part 1: What Is Cocos2d JS
This is the first introductory part of the presentation. It talks about the general features Cocos2d-JS Game Engine has to offer.