Game Difficulty and Progression Balancing Questions

Explain methods and frameworks for designing and tuning difficulty and progression systems. Topics include progression curves and pacing, reward frequency and economy balancing, dynamic difficulty adjustment and player skill matching, fairness and accessibility considerations, instrumentation and telemetry for balance decisions, and design of split tests and experiments to validate tuning. Candidates should demonstrate how to combine quantitative signals with qualitative playtesting to arrive at satisfying and sustainable progression systems while avoiding exploitable or grindy designs.