This study determined the effectiveness of Project VERB (Vocabulary Enrichment through Responsive-Based Games) in enhancing the vocabulary proficiency of Grade 7 students of Manat National High School. A quantitative approach using a one-group pretest-posttest design was employed involving 41 Grade 7 students during Academic Year 2025–2026. Data were gathered through a researcher-made 40-item multiple-choice vocabulary proficiency test validated by experts and found reliable with a Cronbach's alpha coefficient of 0.90. Results revealed that students initially obtained a proficiency level categorized as "Did Not Meet Expectations." After exposure to Project VERB, their vocabulary proficiency improved to the "Satisfactory" level. Statistical analysis using the paired samples t-test showed a significant difference between the pretest and posttest scores, indicating that Project VERB contributed to substantial improvement in students' vocabulary proficiency. The findings suggest that game-based learning interventions can effectively enhance vocabulary acquisition and learner engagement among junior high school students.