You could have downloaded Pensim 2.0 from our software library for free. Our antivirus check shows that this download is malware free. The most popular versions of the tool are 2.0 and 1.0. This free tool was originally developed by Policy Simulation Group. The default filename for the program's installer is pensimv20.exe. The software is included in Photo & Graphics Tools.
From the developer:
PENSIM is a microsimulation model of employer-sponsored pension (ESP) benefit accumulation and withdrawal behavior that is driven by the macro projections generated by SSASIM and produces estimates for a sample of individuals born in a specified year.
You may want to check out more software, such as Plate 'n' Sheet Development Pro., TachyCAD or BabyaCAD, which might be similar to Pensim.