Worked on the topilov/simulators-config repository to deliver configuration-driven gameplay progression features, focusing on achievements, daily rewards, events, and lootboxes for simulator modules. Leveraged JSON and configuration management to enable data-driven design, allowing new features and reward systems to be introduced or adjusted without code changes. This approach centralized gameplay logic in configuration files, reducing hard-coded dependencies and supporting rapid iteration for both QA and content teams. The work enhanced player engagement and monetization readiness by making reward systems easily tunable, while version-controlled delivery ensured safer rollouts and alignment with product goals for player retention in game development contexts.