How about a little something to unwind for the evening with? A charming looking free game tickle your fancy? Fortified has apparently been around on Steam early 2016, but it managed to fly entirely under my radar. A crying shame, because it looks like Orcs Must Die spliced with Mars Attacks. Developer Clapfoot (working on the currently-in-early-access Foxhole) have opted to just give it away for free today. If you nab it on Steam between now and 11am Pacific Time on June 8th, you get to keep it forever.