Capsized - http://store.steampowered.com/app/95300/ You are a space man crash landed on a planet, its not as fast as some others, but its got a good atmosphere.
Shank/Shank2 - http://store.steampowered.com/app/6120/ You need a controller to play this, you could try with keyboard, but its designed around controller. Shooting stabbing action
I think Shank 1/2 is more brawler (Double Dragon) than shooter. It might work for you and is certainly worth playing, but if you're hankering for Contra/Metal Slug action - the best indie game out there for that is definitely Intrusion 2.
Thanks for your replys. I already owned Capsized and Shank 1/2. Next game will be definitely Intrusion 2. Hopefully at Indiegamestand . You know what to do...