## 1 Introduction  
Sign language is a vital means of communication for the deaf and hard-of-hearing communities. Sign language (and sign alphabet) is considered a non-verbal language developed for deaf people community to communicate with each other and with normal people [1]. Early exposure to and learning of sign language and the sign alphabet are crucial for cognitive development, social interaction, and academic achievement in children who are deaf or hard of hearing. The main reasons for hearing loss include aging, genetics, high volume noise exposure, a variety of infections and, in some cases, certain toxins or medications [2]. For deaf children with hearing parents, or those who become deaf due to illnesses, the opportunity to learn and study sign language at a young age is particularly pivotal. In such contexts, the people surrounding these children may not be experts in sign language, potentially slowing the learning rate for both the children and their families if not supported with adequate learning processes. Dead children face significant communication barriers in school, impacting their academic and social development. Limited teacher training and awareness further hinder their educational experience and social isolation and bullying due to communication difficulties can even lead to emotional illness [3]. Learning sign language provides many benefits not just for deaf and hard-of-hearing individuals, but even for hearing persons. Indeed, hearing individuals can greatly benefit by learning sign language, like, first of all, being able to communicate with one's deaf friends, relatives, and coworkers for better inclusion and understanding. Another critical benefit of learning sign language includes better cognitive performance. In fact, some studies show that learning a second language, particularly sign language, improves memory, creativity, and problem-solving skills. This is partly because sign languages stimulate other brain centers than spoken languages, which optimizes the flexibility of the mind [4]. As a consequence, sign language can be a way to improve general communication skills. Through sign language education, one may enhance awareness and sensitivity for facial expressions and gestures since it is pretty essential in the process of a non-verbal form of communication. The use of signs can improve interpersonal communication in everyday contexts, making an individual more sensitive and receptive to non-verbal clues. From this perspective, also teaching LIS to hearing children plays a vital role in promoting inclusivity and fostering a more accessible society. By learning LIS, children develop an early understanding of diversity, empathy, and communication beyond spoken language. It empowers them to interact with peers who are deaf or hard of hearing, breaking down social barriers and encouraging mutual respect. Moreover, exposure to sign language enhances cognitive abilities, including improved spatial awareness, problem-solving skills, and non-verbal communication. This approach not only benefits those who rely on sign language, but also nurtures a generation that values diversity and inclusiveness. The slogan for the new educational pathway is \"learning for all\" [5], emphasizing the need for inclusive education. Introducing sign language as an innovative tool in primary schools or kindergartens could be a key factor in fostering inclusivity and awareness already from a young age. In recent years, the integration of technology into educational environments has revolutionized traditional teaching methods, providing innovative and engaging ways to improve learning experiences. One such innovation is the development of educational video games, which combine entertainment with learning goals to create an interactive and stimulating environment for students [6]. Currently, students can be considered digital natives, and their interest is usually aligned with immersive and interactive environments.