This gateway traps the enquiry computational physics in order to guide you to websites where you will find downloadable computer simulations for physics.
The TIPTOP website is aimed at computer simulations which use JAVA. If you don't have JAVA available, you will find that some of the simulations are still friendly - you don't just get kicked out the door.
There is a page on computer software in PhysLINK:
Wade Lutgen's site contains a program which shows you relativistic flight through a field of stars. It is available both as C++ source code and PKZIPped object code which you can download and run at once.
Other relativistic flight simulators can be found on the author's page of links:
This author's website is aimed at the computer simulation of quantum mechanics. There is QBasic physics software on this site, not just on quantum mechanics, which you can run. You can find programs on the two-slit interference experiment, the relativity of simultaneity, nonlocal communication, the gravitational many-body problem, the Van Allen Belt, the Kelvin-Helmholtz Instability and the Von Karman vortex street. There is also a modest relativistic flight simulator available either as QBasic source code, or as PKZIPped unzip-and-go object code which runs better.
Please contact the author if you can suggest another site to add here.