Considering all the pros and cons, if your goal is to make great games, then PA might be a better choice than UDK or Unity. You got low level acess C++, LUA scripting, state of the art physics, animations and AI, decent next gen graphics, rendering, lighting, material editor, etc. Plus, The whole engine is light, well optimized and will allow you to do whatever you want with it (small & huge worlds). Havok has been around for a very long time, they are there to help developers make greater games and they understand what they need.
I strongly hope that PA will become more popular than both UDK and Unity, because it offers the best of both worlds, if not more.
TidalBlast
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