Q42, the developers who released puzzle game, 0h h1, for free without any ads, in-app purchases, or other catches, have just released another puzzle game. This one is also free without any strings attached. It's called 0h n0, and they've released it simultaneously for the web (0hn0.com), iOS, Android, Windows, and Windows Phone. If you're into puzzle games, 0h n0 is just as addictive as their previous game. Check out a sample gameplay in our hands-on video.