Pathfinder is an evacuation simulator that uses modern research methods in computer science to model human movement, drawing on technologies used in gaming and computer graphics. Pathfinder provides the tools needed to design reliable solutions for the layout of buildings and structural fire protection systems. Multiple simulation modes and customizable occupant properties allow you to easily explore various scenarios, enabling you to perform conservative and optimistic estimates of expected evacuation times. Pathfinder is an agent-based simulator, meaning that each occupant uses a set of individual parameters and makes decisions independently of others throughout the simulation. In addition to its advanced pedestrian movement simulator, Pathfinder includes an integrated user interface and 3D visualization of results.