Server device and non-transitory computer-readable record medium

A server device connected to a user terminal over a network, the server device configured to control a game that progresses as a player accomplishes given missions, the server device comprising:

• a screen data generation unit configured to generate data of a mission screen in response to a request from the user terminal operated by the player, the mission screen having displayed thereon a plurality of mission progress buttons for causing the missions to progress;
• a response process unit configured to perform a process of causing a predetermined event to occur in response to an input from the player through any of the plurality of mission progress buttons;
• a random selection unit configured to randomly select the event that will occur during the mission in a repetitive manner, until parameters assigned to the player change and satisfy a predetermined condition;
• and
• a number determination unit for buttons configured to determine a number of the mission progress buttons to be displayed on the mission screen, according to a number of the events randomly selected.