StochSD
CSS package for contin., discrete and combined modelling & simulation
...This means that the results from CSS and DES modelling now can be fully consistent. (See the paper "The Full Potential of Continuous System Simulation Modelling" by Gustafsson L & Sternad M.)
In particular, StochSD includes features for stochastic modelling and post analysis of multiple simulations followed by presentation of the results in statistical form.
Tools for Sensitivity Analysis, Optimization and Statistical Analysis are parts of StochSD.