This document describes a project and portfolio simulation capability that provides predictive and prescriptive analytics. It allows users to easily create multiple scenarios considering portfolio data, resources, and financials. It also provides a competing objectives optimizer that evaluates objectives like project priorities, throughput, resource capacity, costs, and revenues. The simulation generates predictions and recommendations by considering all risks and simulating numerous potential futures to optimize portfolio performance. It enables rapid interactive scenario planning and visualization of project schedules and their impacts on constrained resources and costs.