BoxCat Games has made their rather awesome RPG, Nameless: The Hackers, free for a limited time.
This weird, wacky, charming, and unexpectedly clever game involves a rag-tag group of hackers getting swept up in a massive conspiracy. It features some surprisingly recognizable role playing mechanics that have been disguised as hacking techniques (i.e. the heal spell is now "Data Recovery," etc), as well as a few unique mechanics such as an Infocard system that replaces traditional leveling. In other words you should download this Editor's Choice pick right away while it's still free. You've got from 10/15 to 10/20, so you'd better hurry!