Live interactive physics simulations let you explore the Solar System (orbits, seasons, gravity, tides, comets and satellites), play snooker and experiment with Laws of Motion, bridge,crash,ideal gas,pendulum clock and siege engine simulations.

JRK Software is a company dedicated to developing the best quality self-testing and training products for the computer professional market. We working to provide the most valuable simulations of Microsoft, Cisco and CompTIA Certification exams.

Demo Builder offers a simple, convenient and fast way to build professional and interactive demos,tutorials and simulations for your software or website in just a few minutes and no programming knowledge is required.

Educational orbit and gravitation simulator for high school, college and beginning university physics and astronomy. Easily create, run, print and save a simulation. Includes 29 premade simulations with activities page in html-format.

Jump Shot Basketball allows you to accurately simulate professional basketball. Complete customization allows you to create your own league, teams, and players. Play unlimited seasons with franchise mode.

Ticker Tycoon puts you against the computer in a fun and addictive stock market simulation game. Gamble and learn without losing a cent! Includes stock options trading, news events, company earnings reports, and variable levels of difficulty.

ASL Logbook is a program designed and developed for organizing and enhancing play of the Advanced Squad Leader game system. It administers and organizes your scenarios, products, publishers, documents and contacts. Create a SL and rate your skills

Operation Konrad recreates the German attempt to relieve the Russian siege of Budapest, the Hungarian capital, in early 1945. One player will control the axis army (German and Hungarian units), the other plays the allied forces (Soviet and Rumanian).

This innovative single-player 3-D game is best described as a combination of space combat and soccer. The player's ship fires small balls at a larger cue ball to propel it into pinball machine-like targets.

A great turn based wargame covering Operation Typhoon in late 1941. Replay the German unsuccessfull attempt to capture Moscow, followed by the Russian counter-offensive that denied the German any chance to conclude the eastern war that year.

Play blackjack with 2 other computer generated players or by yourself. The computer controlled players will play based on a chart of moves that you can define that depends on the dealers up card and the cards in the players hand.

Free turn based wargame covering Operation Typhoon in late 1941. Replay the German unsuccessfull attempt to capture Moscow, followed by the Russian counter-offensive that denied the German any chance to conclude the eastern war that year.

A great turn based wargame covering the Japanese invasion of Malaya in 42. One player will control the Japanese army, the other plays the allied forces (British, Australian, Indian, and Malay troops).