Many developers of free online games have quickly realized its potential. While Shockwave has replaced Java as the most popular engine used for online games, Java is still the tool of choice among many developers. Java became very popular when Netscape decided to support the program with their browsers. Most people use Java by the “applets” which are supported by their online browsers.
Despite this, there are some criticisms of the Java programming language. Shockwave has a 3D engine which is much more powerful, and many developers have chose it rather than Java. Others complain that it is not a very pure object oriented programming language. Those who dislike object oriented languages will not design free online games with Java. Programs written in Java may also run slower than programs written in other languages.