This week on Steam I purchased an Early Access copy of Akaneiro: Demon Hunters, which is a new ARPG from Spicy Horse (run by industry veteran’s American McGee and R.J. Berg). The game can be downloaded for free for Windows and Mac from the website, with a Linux version available through the support site. It looks to have the ability to purchase game currency and items, as the Steam version costs money it comes with a bunch of extra items, which I haven’t really looked at yet.
I have only played briefly so far, but for what is essentially an alpha build of a game it works very well. It is definitely worth at least downloading and checking out the free version.