For Monte Carlo simulation I prefer to use Microsoft Excel as this allows flexibility for altering parameters as you wish. The following article explains how to do this:

https://www.researchgate.net/publication/267511849_Playing_risk_roulette_with_Monte_Carlo_simulation_using_Microsoft_Excel_2003_or_higher

Thanks all

I can recommend Crystal Ball from Oracle. In addition to the simulation itself, it makes it possible to perform a number of optimization procedures, which are, in my view, more important than the simulations themselves.

Pleas Abhrajyoti Tarafdar ,

I want

Monte Carlo Ray tracing in optical simulation??

How I can get It???

Dear Abhrajyoti Tarafdar Thank you very much for your answer....

but I want software as Tracpro...

but I cant bring it with License....

Best regards