I've gotten a decent number of referrals from Google looking for the penguin-and-yeti games I had talked about two days ago. Well, getting 7 referrals on a page where 30 hits a day is still a big deal is a decent number. Anyway, the link in that post is pointing to someone's home page. So in the interest of keeping his/her bandwidth costs down, I've searched and discovered (which wasn't hard, given the link in the intro to the second game) that the games come from yeti.e-medien.com. There, not only can you play online but you can download the games to play on your own computers.
Also, according to the site's front page, these two games are part of a planned decathalon, and the author is accepting suggestions for game ideas!