What is the best free portable 3d/2d engine? [closed]

i like to make very simple 3d/2d game for pc/mac/linux what is the best free 3d/2d engine for this ? i have no experience in game programming so i guess it have to be easy to learn please in c++ thanks

What is the easiest 3D game engine to use?

Unreal Engine Unreal Engine is a development engine that prides itself on being one of the more advanced real-time 3D creation tools. Yet it's great for beginners and you'll even find a learning resource section on its website.

While 'best' can very much depend on your situation, one I have used in the past to great success is OGRE 3D.

It's cross-platform, very nicely written (C++), and runs well. However the one thing that set it apart for me was the great community - you can always get help no matter how simple your question, and there are plenty of guides/tutorials around on their forum/wiki. The documentation is also very good.

It's well worth checking out.

Hrmm, upon reading that it almost sounds like I have a vested interest - I don't! I just really like it from past experience!