Source: Schema.org v30.1 vocabulary. Official playersOnline property definition.
What does playersOnline mean?
Number of players on the server.
Used on types (domainIncludes)
Expected value types (rangeIncludes)
Schema.org domainIncludes and rangeIncludes are descriptive guidance, not strict validation prohibitions. Check the official reference for updates.
Related reference
Browse all Schema.org types and properties · Google feature support status