Abstract: Provided is a program causing a computer to execute steps for: determining, when an in-game quest is played by a player, whether the quest is cleared successfully; executing lottery processing for determining a reward to be given to the player, based on a determination result; and giving the player a reward decided through the lottery processing. The program is characterized in that the step for executing lottery processing includes: executing first lottery processing on the basis of a first lottery rate, in the case where it is determined that the quest is cleared successfully; and executing second lottery processing under a more unfavorable condition to the player than that for the first lottery processing based on a play summary evaluation decided on the basis of a play summary of the player in the quest, in the case where it is determined that the quest is not cleared successfully.

Abstract: Provided is a program for a game for performing a battle by using a game-medium set selected from among two or more game-medium sets, the game-medium set being organized and stored before the start of the battle and including game media selected from among game media possessed by a user, the program causing a computer to execute steps: for storing, when a selection input for selecting a quick-execution game medium from among the game media included in the game-medium set is accepted, the selected game medium as a quick-execution game medium in the game-medium set; for displaying a quick-execution operation section in a battle screen when the battle is started by using the game-medium set; and for executing effect activation processing associated with the quick-execution game medium in the game-medium set, when a user operation with respect to the quick-execution operation section is accepted.