This internship focuses on game engine development, improvement, and optimization. Responsibilities include developing pathfinding and NPC AI systems, character control, animation, and physics simulation. Candidates must be proficient in C++ programming, possess strong communication and collaboration skills, and have a keen interest in developing in-game character actions and AI behaviors. Preferred candidates have experience in character control, rendering, or navigation system implementation, a deep understanding of numerical computation and simulation, and a strong foundation in mathematics and physics. The internship runs from March 31, 2025, to May 23, 2025, at Pearl Abyss's headquarters in Gwacheon, Gyeonggi-do, South Korea. It involves both project work and practical application.