Unity Realtime Multiplayer, Part 2: TCP, UDP, WebSocket Protocols

My <a href="https://medium.com/my-games-company/unity-realtime-multiplayer-part-1-networking-basics-88226b961a95" rel="noopener">series of articles</a> on the Unity Networking Landscape in 2023 continues! Today's post will cover the data transmission protocols utilized in real-time multiplayer games. Greetings everyone! I'm Dmitrii Ivashchenko, a Lead Software Engineer at MY.GAMES. We'll start with a brief overview of what protocols exist at different levels of network interaction. <h1>OSI Levels</h1> The OSI (Open Systems Interconnection) model is a conceptual model that characterizes and standardizes the functions of a communication system in terms of abstraction levels. This model was developed by the International Organization for Standardization (ISO) in 1978. <a href="https://medium.com/my-games-company/unity-realtime-multiplayer-part-2-tcp-udp-websocket-protocols-dc3f54fbf01e">Website</a>