You can now subscribe to itch.io RSS feeds to get up to date lists of games right in your feed reader.
For any browse page URL, such as http://itch.io/browse/price-free you can append
.xml to the end of the URL to get access to an RSS feed containing those games, eg.: http://itch.io/browse/price-free.xml
Additionally the following feeds are also available:
The new games feed will give you the latest games uploaded: http://itch.io/feed/new.xml
The featured game feed will give you the latest games that have been featured on the homepage: http://itch.io/feed/featured.xml
And the sales feed will show you all active sales along with the games are are on sale: http://itch.io/feed/sales.xml
P.S. Feel free to message me if you have any idea for more feeds