Linked arcade machines rely on specific networking protocols to enable multiplayer gaming and synchronized gameplay. The most common protocols include:

1. TCP/IP – The backbone of modern arcade networking, ensuring reliable data transmission between machines.

2. UDP – Often used for fast-paced games where low latency is critical, though less reliable than TCP.

3. RS-232/RS-485 – Legacy serial communication protocols still found in older arcade cabinets for simple data exchange.

4. Proprietary Protocols – Some manufacturers use custom protocols optimized for their hardware, reducing lag and improving synchronization.

5. LAN (Local Area Network) – Many modern arcades use Ethernet-based LAN setups for stable, high-speed connections.

These protocols ensure smooth gameplay, leaderboard synchronization, and real-time interaction between linked arcade machines. Whether for competitive or cooperative play, the right networking setup is essential for an immersive arcade experience.