The core gameplay, or rather, the core functionality of Gmail in 2013, revolved around sending, receiving, and managing emails. Users could compose new emails, reply to existing ones, and organize their inbox using labels and filters. The search function was also a key feature, allowing users to quickly find specific emails.
The main appeal of Gmail in 2013 was its simplicity and ease of use. The interface was intuitive, making it easy for new users to get started and for experienced users to manage their emails efficiently. Speed and reliability were also major advantages, as Gmail was known for its fast loading times and minimal downtime.