I am getting into game programming more and more. I have been learning DirectX11 but it is hard and very low level. I am looking for a game librarie that has these spesifications:

Must be in C++ (the library doesn's have to be written in C++. As long as I can code my game in C++)
Must free (I dont want to get a lisence)
Must suport:    1) Sound
                2) Graphics 
                3) Input
                4) AI
                5) Network
                6) Physics
                *Note: Basicly every thing one needs to make games
Must be rarther easy (I am good in C++ but not the best. So I dont mind a little complexity, but must be easy)
Must work on Windows
Must be a good one (Meaning it is still being updated, and if it is used for games today)
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