Yep ended yesterday at noon (twas free for 2 days), i am not affiliated with the websites that repost when games are free so, if my game is still listed as free wherever you found it you will have to talk to those people.
Its worth it at full price though. I did get a massive amount of positive feedback when i made it free heh. Do keep an eye out i put it on sale frequently (not free usually but on sale heh)