Wikipedia
KLettres
KLettres is an educational program that helps the user learn the alphabet as well as pronunciation. It is free and open source software, licensed under the terms of the GPL. The software is part of the KDE Education Project, and is meant to teach very young children aged 2 to 6 years the alphabet. There are currently 4 levels in the game and supports 25 different languages. The last update to KLettres was in 2011.