Flan is a network simulator written in Java. It is meant to be easily expandable by adding new protocols, which are also written in Java. It includes a graphical network construction interface, a RIPv2 (with subnets, that is) protocol, IP packets handling, etc. Flan is based on a continuous time-discrete event simulation engine (with real-time sync).
GPxSite is a module for PHPNuke which allows you to have a GrandPrix racing league on your Web site. It facilitates easy online uploading, validating, and checking of whether the uploaded file is an actual GrandPrix game entry (Hotlap, Game, etc.) and if it has been played in accordance to the rules you have set. All uploaded files can be used to create online, realtime rankings for your league. HOFxLap is used to do the server side validation of the uploaded file.
Open Pinball is a pinball simulator. The program is divided into two processes. The main process takes care of interpreting the .table description files and controls the ball's movements according to physical laws. It communicates the ball's coordinates to another process (renderer) which renders the table (taken from the same .table file) and the ball as it moves around. The main process must also communicate status for objects it hits so that renderer can produce sounds and count scoring. The rendering process is currently a 2D renderer.
SIMPLE_1 (SIMulation Program for Logistics Engin'g) is a discrete/continuous network-oriented simulation language with general-purpose programming language features. The Linux version of this software includes a project management system to automate integration of user-developed C/C++ code into SIMPLE_1 network models. A user's C/C++ code is interfaced with the SIMPLE_1 modeling language through information embedded in comments in the user's header file(s). SIMPLE_1 produces executable files with the help of the C++ compiler.
QGolf was developed for radio amateurs to clarify the behaviour of a signal on an antenna. It demonstrates the forces that act on a rope if you move one end of it: you can see how waves are reflected, how resonance occurs, and how multiple pulses coexist on the same rope. Various parameters can be updated during the simulation.
Ren'ai/Dating Simulation Engine is derived from a type of computer game from Japan. The player controls a point of view (POV) game character, who interacts with other game characters in the hopes of winning the love of one of them. So far all of these games are closed source, and none have been translated into English. The Ren'ai includes a cross platform, internationalized game engine, on which dating sim type games can be played, plus an English based game to play on that engine.