Which game metrics drive the most ROAS impact?

Which game metrics drive the most ROAS impact?

Here is a Tier List:

S-Tier (Highest Impact)
• Long-Term Retention
• ARPDAU (Average Revenue Per Daily Active User)

A-Tier
• CPI (Cost Per Install)
• Conversion to Payer Rate
• Short-Term Retention

B-Tier
• Sticky Factor
• Average Purchase Value
• Session Length
• Number of Sessions

C-Tier
• Purchase Frequency
• Levels per Session
• Churn Rate
• Tutorial Completion Rate

D-Tier
• CTR (Click-Through Rate)
• eCPM (Effective Cost Per Mille)

E-Tier
• K-Factor
• CVR (Store Page Conversion Rate)
• Time to First Purchase