Tunngle software is a virtual private network (VPN) tool that allows users to play online games with their friends over the internet. It offers a secure platform for peer-to-peer gaming, ensuring that players can connect and communicate with each other even if their internet service providers (ISPs) block certain ports. The software supports a wide range of games and allows users to create their own virtual LAN networks. Additionally, Tunngle offers chat rooms, file sharing, and other community features.