There are many metrics and tools that can help you measure your game's appeal and engagement, but not all of them are equally useful or relevant for your game. Depending on your goals and target audience, you may want to focus on different aspects, such as retention, monetization, feedback, or social interaction. For instance, tracking downloads and installs can show how many people are interested in your game and willing to try it out. You can use platforms like Google Play, App Store, or Steam for this purpose. Moreover, metrics like day 1 retention (the percentage of players who return to your game on the first day after installing it) or engagement rate (the percentage of players who are active on your game over a period of time) can be used to measure retention and engagement. These numbers can be tracked using analytics tools like Google Analytics, Firebase, or Unity Analytics. Additionally, average revenue per user (the average amount of money that players spend on your game per user) or conversion rate (the percentage of players who make purchases on your game) can help you measure monetization and revenue. Finally, collecting feedback from players through surveys, reviews, ratings, or comments can give you an idea of their satisfaction and loyalty. Lastly, metrics like referrals (the number of players who come to your game through a link or recommendation from another player), shares (the number of times that players share your game or content from your game on social media), or impressions (the number of times that your game or content from your game is seen on social media) can help you understand the popularity and influence of your game.