Abstract: The invention relates to methods and apparatus for movement animation of a user-controlled entity in a virtual environment. Entity tracking data is stored on a server in order to track movement of the entity in the virtual environment. A user may input a desired action for their entity via a client, which is transmitted from the client to the server. The server uses the received data to select an appropriate animation for the entity. The server then transmits data identifying the selected animation to the client, thus controlling animation of the entity on the client. By using animation data to simulate movement of the entity, along with keeping an accurate representation of the movement of the entity in the virtual environment, the server may control the entity accurately and therefore animation of the entity may be more realistic.