I have... I think by accidentally clicking a google ad or something. It looked interesting but I've never really bothered to try it out, mainly because I think I was busy with tests or something and totally forgot about it afterwards.
Maybe I'll try it now that I have a lot of free time.
EDIT: So... I've been playing Dead Frontier for the past few days. Pretty interesting. The zombies still go after you even if you've chopped off their arms and head o.o Which is cool. I can K.O. zombies by slicing them in half... With a kitchen knife. Ha.
EDIT 2: Oh my god. At first the game was "meh. It's ok" but then I ventured farther... And holy shit. Wow. Just wow. O_O I was trying to get to Dogg's Stockade with some nice chap. It was normal at first... But the father we went it, the harder it got. My health dropped down to critical and I had no health supplies with me. We were just running. Every place had like, 30 zombies or something. There were
so many. My inven got too full, so we just ran for it. Until the dude I was with lost connection. He was level 30, and I was only 11 and there were like, dozens of zombies stalking me so I had to make a run for Doggs. It was... Wow. Really felt like a zombie apocalypse. Then I made it to Doggs. ALMOST. I was just one step away from the sanctuary, when I stupidly decided to open the chat box and go "OMG I MADE IT WOW" then a zombie killed me.
That was painful. .-. Wasted an hour, lost 50% of my exp and all my money.
The pain....