Sega is giving away a bunch of their classic games on Steam. No idea how long this will last so go there now and grab them while you can

http://store.steampowered.com/sub/94153/

About the Game

Go to any of the following pages and click "Install Game" to add all of the games in this package to your account. You will only need to do this once.
Jet Set Radio
Golden Axe
Hell Yeah! Wrath of the Dead Rabbit