Here's a link to a site offering the "Free Indie Bundle", which consists of 5 freeware games. They look like they might be of some interest.
The link:
http://theturtle.editions.free.fr/nanigaming/freeindiebundle/
The games are:
Nitronic Rush: an experimental driving survival game
Stealth Bastard: a stealth platformer
A Flipping Good Time: a 2d platformer
Viriax: "a medical terror arcade game"
Ski Challenge 2012
Haven't tried any of them myself yet.