A small Arduino library for GSM modules, that just works
An open source re-implementation of RollerCoaster Tycoon 2
SUMO is a microscopic, multi-modal traffic simulation.
ProStack - a platform for image processing and analysis
RSSceSim - Reputation System Scenario Simulator
An application for eclipse chasers, by an eclipse chaser.
EXperimental REplicator COllider
BlueSky Open Air Traffic sim, (Windows/Linux/Mac, Python 2.x based)
2D physics engine and simulation
Javafastcomplex has both mutable and immutable complex numbers