PerMoTo is a Performance Modelling Tool suite for decision support in the capacity and performance management of distributed transaction processing systems based on Queueing Theory and Discrete Event Simulation.
JImola is a editor for racing sims developed under the ISI engine (GTR, GTL, rF, ...). It allows the user to change the AIW file (AI control, cutting, track borders, grid and pits info) in 3D without the hassle of editing a big text file.