Was Kairosoft games ever free on PC?

I tried to look around on the net but it seems that I can't find any Kairosoft games for PC. I own a Iphone 5 so i've been playing their games like nuts, such as Game dev, Village dungeon, Pocket League and Grand prix, Yet I recall playing all of them at least once on the pc for free.Am I wrong?

In English - I think not.

I do have a 'vague' memory of a Japanese version being available at one time though.