Starpoint Gemini 2 and the DLC: called "Origins" are completely free until 10 AM on May 24 (Pacific Time Zone)...

Even if you don't want to put it on your computer now, I would suggest adding it to your library by smashing the big green "Play Now" button!
(...or the "Install Game" button, but it won't install it unless you confirm that, otherwise, it will simply show up in your library)

http://store.steampowered.com/app/236150/
http://store.steampowered.com/app/371060/Starpoint_Gemini_2_Origins/