Arcade machines thrive on player engagement and satisfaction, making it essential to track key performance indicators (KPIs) that reflect user experience. The most common player satisfaction KPIs include:

1. Gameplay Duration: Measures how long players stay engaged with a machine, indicating its appeal.

2. Revenue per Session: Tracks average spending per play, reflecting monetization effectiveness.

3. Repeat Visit Rate: Shows how often players return, signaling long-term satisfaction.

4. Player Retention Rate: Evaluates the percentage of users who continue playing over time.

5. Net Promoter Score (NPS): Gauges player loyalty by asking how likely they are to recommend the game.

By monitoring these KPIs, arcade operators can optimize game design, pricing, and maintenance to enhance player satisfaction and profitability.