This paper presents the effects of using digital games on improving language learning in Tanzanian preschools. A gamified learning prototype system was developed for making alphabetical sound articulation more engaging and fun. The study was conducted with twelve preschools in Tanzania. The results revealed that preschoolers' learning performance was improved when the game-based learning approach was incorporated into the sound articulation lesson. The findings inform educational stakeholders about the potential use of gamification in preschool education and propose ideas and means to standardize sound articulation and language learning to improve the overall quality of education.