ProShake 2.0 is a powerful, user-friendly computer program for one-dimensional, equivalent linear ground response analysis. Written completely from scratch, ProShake 2.0 includes numerous features to make data entry, analysis, viewing and documenting of results efficient and effective, including built-in modulus reduction and damping models, graphical display of soil profile and input motion parameters, graphical display of a wide variety of output parameters, and animation of ground response. ProShake 2.0 is organized into three "managers" - an Input Manager, a Solution Manager, and an Output Manager. The Input Manager allows entry of soil profile and input motion data. The Solution Manager performs iterative equivalent linear analyses while tracking the process of convergence toward strain-compatible soil properties. The Output Manager allows easy plotting of results in the form of time histories, response spectra, parameter profiles, and animations. A series of other parameters can also be computed. ProShake 2.0 also includes useful Report feature, as a file in Microsoft® Word® format, that automatically records the conditions of each analysis in tabular form. All ProShake 2.0 plots can be copied to the Report and saved for subsequent editing in Microsoft® Word®.