Complex sentence: Chatlantis is the first HTML 5 chat room on the Internet and is the virtual world in the HTML5 programming language which is driving more users to update their systems and platforms to use the most easily accessible technology available.
Split into simpler sentences: Chatlantis is the first HTML 5 chat room on the Internet and is the virtual chat world written in the new HTML 5 programming language. More users have need to update their systems and platforms to use the most easily accessible technology available.