The document discusses top gaming chat apps in 2021, dividing them into three categories: social chat apps with integrated games like Houseparty and Facebook Gaming; gaming apps with inbuilt chat features like Fortnite and Call of Duty; and social chat apps to discuss games like Discord and Teamspeak. It provides examples for the top apps in each category, noting popular features like text, voice, and video chat capabilities. In conclusion, it suggests contacting a game development company to gain experience needed for creating a successful gaming or gaming chat application.