A server according to an embodiment provides online games that send game screens more suitably for the throughput of a user terminal. In accordance with one aspect, the server can execute a game program including: a game progress module for progressing a game; a generation module for generating, at first time intervals, frame information containing a plurality of drawing commands to be executed on a terminal device to render one frame of a game screen in accordance with progression of the game; a determination module for determining whether to send the generated frame information to the terminal device; a compression module for compressing the generated frame information; a sending module for sending to the terminal device the compressed frame information to be sent; and a request module for requesting drawing execution time information from the terminal device at second time intervals.