Rollback netcode is a communication system used for online play in fighting games that effectively reduces the perceived latency in the game, resulting in a much more responsive online multiplayer experience, even for players competing together from opposite sides of the world. It is a technique for synchronizing game states in multiplayer fighting games, where fast and precise inputs are crucial. Rollback netcode executes inputs from players immediately (or after some small buffer) and continually receives inputs from the other player to synchronize the game state.
Rollback netcode is highly requested in the fighting game community and is becoming more common for developers to implement. It makes online fighting game matches as smooth as possible, regardless of each competing players internet connection. The implementation of rollback netcode is important for supporting the competitive scene in the long run, and it is expected to become an industry-standard feature in the years to come.
