WOW, this game is actually a lot of fun! I am playing it on my 1.8Ghz C2D with only 2GB RAM and an Nvidia 8400GS and it works right out of the box with my xbox 360 controller. I forget how much I paid for it but I got in a humble bundle I believe and it was so worth whatever I paid. I had it for a long time but just never played it until I tried it just now and am loving it.
PS I have a youtube channel I do gameplay commentaries on and what not but sadly my machine isn't powerful enough to play it in 1280x720 windowed mode AND record it using Kazam so I can't do a let's play but I'd love ti. #sadface
If you haven't picked up this linux title I strongly suggest it!