How can I use it?

[henryliuliuliu]

It seems that you transfer the chrono engine in unity to replace the default physics engine? Is the pychrono still working?

[AlanEvo]

It's only a partial port, just the basics and it doesn't replace the PhysX built in engine, it's just an alternative. Python chrono is a wrapper of the original c++ version of chrono, this is 100% C#.