General Mission Analysis Tool
Circuit simulator for power electronics
OpenNum lets you distribute solvers with a nice graphical interface
Real-time interactive 3D graphics API for scientific simulations
PySCeS Constraint Based Modelling
Interactive program to calculate electronic properties in graphene
Pure-python binary fixed-point arithmetic library
Simulate high power rocket flights with splash down plots
Simulated Airline Travel Solution Provider Library
Distributed Computing with JavaScript
Physically-accurate robotics simulator written in Python
Computer science experiment manager
NEVESIM is an event-driven neural simulation tool.