Bearded Giant Games, developer of Ebony Spire Heresy have announced their new online store along with a 'Linux First Initiative'.
I know what you're thinking already "not another store", but fear not. For now, it's mainly going to be a place for them to sell their games directly. Speaking about it in a blog post, they mentioned how they hate having to check over multiple forums, channels, emails and so on to stay up to date and they wish "to spend more time giving love to my projects instead of updating 4 different distribution channels, translating pages, writing different press releases and making separate builds"—can't argue against that.
With their 'Linux First Initiative' they will be targeting Linux first, as it's their main platform. They will still provide Windows builds of their games but their biggest focus is going to be on Linux.
And another advantage of going for Linux as my main target? I don’t have to compete as much as I do on Windows and I can lower my expectations and sales goals. This allows me to stay as small and nimble as possible. I can also start growing a small audience from this point onward that will look for me and my games here.
Direct purchasing only has worked very well for some developers, as long as you have a good enough game available there people will come. After all, Valve might currently be the number one store with Steam but gaming doesn't revolve solely around them.