@RISK - @RISK is the world's most widely used risk analysis tool.
gretl - homepage of gretl, the Gnu Regression, Econometrics and Time-series Library
RiskAMP - RiskAMP is a full-featured Monte Carlo Simulation Engine for Microsoft Excel.
EViews - EViews (Econometric Views) is a statistical package for Windows, used mainly for time-series...
Yasai - YASAI is an open-source Monte Carlo simulation add-in for Microsoft Excel
SAFE TOOLBOXES - SAFE TOOLBOXES is an Excel add-in that enhances Excel capabilities to perform simulations...