JStella is an open-source Atari 2600 emulator that is programmed in Java, and thus can be played on most major operating systems (Windows, Mac, Linux, etc).  

Currently, there are 2 different ways of running JStella.
1. It can be directly from the JAR file.
2. It can be run as a Java Applet on a web page.

 

GETTING STARTED		DOWNLOAD JSTELLA
CONTROLS		JSTELLA PROJECT
APPLET FAQ		TROUBLESHOOTING
ADVANCED APPLET SETUP

  Sample of JStella applet (external links):

• JStella at Mauvila.com JStella applet running the game "Thrust"
• Spiceware JStella applet running the game "Medieval Mayhem"