Good RPGs under $5?

Wanted to go ahead and grab a couple more things before the sale ends. Looking to spend around $5 and prefer RPGs. My favorites on Steam right now are the two Ys games.

Specs wise, I have a dual core 2.30 GHz processor, 4GB of RAM running Windows 7 64 bit. Only suck thing is the Intel 4 series GPU and my computer is a laptop, so that's not likely getting an upgrade without me getting a new computer. Skyrim runs fine on it on low settings and I have no issue with how it looks. But I know with those specs that The Witcher is out for the time being.

Edit: Ended up grabbing both KOTOR games. But I don't mind more recs to wishlist for future sales.

Also, I have Fable 3 and Bastion for my Xbox 360 and have no plans to rebuy them. No need to rec those as I know how awesome they are.