Worked on the GTNewHorizons/GT5-Unofficial repository, focusing on improving the reliability of world generation in a Java-based game development environment. Addressed a critical bug in the WorldgenQuery component by refining the vein selection logic, specifically correcting an off-by-one error that previously prevented the last vein in a list from being chosen. This targeted fix involved adjusting a boundary condition, enhancing the consistency and robustness of vein generation outcomes. Demonstrated strong debugging skills and attention to edge cases, contributing to more predictable world generation and a smoother user experience. Utilized Java and applied expertise in bug fixing and procedural world generation.