<![CDATA[Language development is a fundamental aspect of early childhood growth, particularly for children aged 4–6 years, a period widely recognized as the golden age. However, multilingual vocabulary learning in Early Childhood Education (ECE) institutions still faces several challenges, including the predominance of conventional learning methods, limited interactivity, and insufficient ability to maintain children's motivation and engagement throughout the learning process. As a result, vocabulary acquisition across multiple languages has not been optimally achieved. This study aims to develop a web-based multilingual vocabulary learning game for early childhood using the Multimedia Development Life Cycle (MDLC) method, which consists of six stages: Concept, Design, Material Collecting, Assembly, Testing, and Distribution. The game was developed using the Next.js framework with TypeScript and features five game modes: Matching Pairs, Treasure Box, Quiz Time, Word Builder, and Audio Match, supporting three languages: Indonesian, English, and Arabic. The study was conducted at PG-TK Islam Al-Azhar Cairo Yogyakarta, involving 14 six-year-old children as observation participants and two teachers as respondents for the System Usability Scale (SUS) evaluation. Functional testing using Black Box Testing across 21 test scenarios showed that all system functions operated successfully. The usability evaluation resulted in an average SUS score of 81.25, which falls into the Good and Acceptable categories. Furthermore, observations indicated an average game usage achievement of 93.57% and an average vocabulary recognition achievement of 92.86%, both classified as Very Good. These findings demonstrate that the developed game is feasible as a multilingual vocabulary learning medium for early childhood education in terms of functionality, usability, children's engagement, and effectiveness in supporting vocabulary acquisition.]]>
