Hello Linux Geeksters. The Riddling puzzle game has been created for Ubuntu Touch, being available via the Ubuntu App Store. The app is written in QML and JavaScript, and is builr on the the Ubuntu SDK. For more information, see the developer’s site.

If you are using Ubuntu Touch on your LG Nexus 4 or other Google Nexus device, just open the Ubuntu App Store, search for “riddling” and install the game. Or, you can open the terminal app on your Ubuntu Touch, download the click package from the official site:
$ wget -c www.kryogenix.org/code/riddling/org.kryogenix.riddling_1.2_all.click
After the download has finished, install the Riddling click package.
Besides the Ubuntu Touch Core Apps and the Ubuntu Desktop apps, Ubuntu Touch has many apps developed specially for it, including:
- Reminders, an open source Evernote client developed by Canonical
- A Facebook app
- CalculusTouch, a smart calculator app
- Web Browser App, a web browser developed by Canonical
- Mappero, a GPS app ported from Maemo
- Karma Machine, Saucy Bacon and Snake, the winning apps of Ubuntu Apps Showdown 2013
- The Eyrie Music App Identifier, an app for displaying information about tracks, ported to Ubuntu Touch
- CuteSpotify, an open source Spotify client for Ubuntu Touch
For those who don’t know yet, the first stable version of Ubuntu Touch (based on Ubuntu 13.10) has been released in October 2013. The developers have already started work for the next Ubuntu Touch version, which is now based on Ubuntu 14.04, a system that should bring a full mobile-desktop convergence, and make Mark Shuttleworth very happy. Despite the fact that it is not mature enough to compete with Android, Ubuntu Touch has good chances of becoming a popular mobile OS, at least among the Linux enthuriasts.