Real-time N-body simulator implemented in OpenGL using Particle-Particle method with both CPU and GPU implementations accelerated with compute shaders.

Black Hole Particle Simulation (BHPS)

Parinsula is an interactive visual simulator of relatively isolated systems, which are a particular type of complex system.

Packet Tracer is a cross-platform visual simulation tool designed by Cisco Systems that allows users to create network topologies and imitate modern computer networks.