In 1996, a group of literacy educators, linguists, and educational researchers are known as the New London Group developed multiliteracies pedagogy in an attempt to extend the traditional definition of literacy -the ability to read and write -to encompass dynamic, culturally, and historically situated practices using and interpreting diverse written and spoken texts to fulfill particular purposes. This study presents an overview of the implementation of multiliteracies instruction incorporating project-based task in an ESP setting to see how pedagogy can be implemented in an ESP course and how this pedagogy facilitates learners in multimodal literacy learning. A project-based assignment in the form of digital multimodal informative text (i.e., digital poster) creation was utilized. To get a comprehensive overview of the implemented teaching program, a qualitative approach with a case study design was applied. The participants of this study were 30 semesters two students of Informatics Engineering taking English as their compulsory subject. To establish the trustworthiness of the research results, this study utilized classroom observations, interviews, and students' artifacts for the data collection. The results of the study indicated that the students, in general, could create a wide range of multimodal texts using their multimodal knowledge. The students could likely recognize the multimodal aspects of the works they did and were likely able to produce multimodal texts cohesively. This study hopefully could provide a window for ESP teachers to better understand the implementation of multiliteracies pedagogy in the ESP classroom context.