In-game chat is a crucial feature for enhancing player engagement and retention by providing a connected digital experience similar to popular chat apps like Discord and WhatsApp. PubNub, a developer API platform, facilitates the creation of scalable, real-time in-game chat infrastructures that support essential features such as message persistence, push notifications, read receipts, typing indicators, and message reactions. These features are designed to meet the expectations of contemporary gamers who seek intuitive communication methods within games. PubNub's SDKs for Unity and Unreal offer pre-built functionalities, allowing developers to efficiently implement chat features like private, group, and public conversations, friend lists, and real-time user presence. By offering a robust and secure messaging infrastructure, PubNub helps game developers create immersive social experiences, fostering personal connections among players, and ensuring smooth, natural communication integral to any gaming community.