QUIC Network Protocol

TERA Arise uses a new QUIC-based network protocol, as well as a more compact packet serialization format for a subset of the game's packets. This new protocol also eschews TERA's hopelessly insecure PIKE-based encryption in favor of standard TLS as required by QUIC. Stream prioritization is used to ensure that urgent packets (e.g. ones related to combat) are delivered faster than others (e.g. ones related to guilds, chat, etc), and ensures that transient packet loss in one stream does not affect the whole connection.

Overall, the QUIC-based protocol should result in lower latency, higher throughput, and more reliability. This in turns translates to a more responsive gameplay experience.