Worked on the tgstation repository to enhance gameplay balance and test reliability in a C and DM codebase. Refactored blood volume-related defines to introduce BLOOD_VOLUME_MAXIMUM, allowing lethal thresholds, excess blood, and slime split mechanics to scale automatically with maximum blood volume. This reduced manual maintenance and improved scalability for future updates. Additionally, improved test stability by modifying the create_and_destroy function to prevent spawning abstract types and strengthened unit tests for fantasy variables by selecting random subtypes, reducing fragility and CI noise. Focused on code refactoring, game development, and unit testing to support more reliable and maintainable releases.