need some advanced guide

I installed WP on one of my domains. I have another website up and working. What I want to do is fetch data from database from that site and make posts in this new WP site. As soon as any new data is added into that site it should also appear here in this site.

see the sites for a brief overview

http://www.allthegames.in/
http://www.playfreeonlineflashgames.org/

I want the same games to be displayed here also. on the new site. Can anyone help me.