1. A non-transitory computer readable medium upon which a computer program product is embodied, comprising code executable by a computer arranged to operate a computer game, the computer having at least a processor and a storage unit, to cause the computer to carry out the following steps:a storing step, comprising storing, in the storage unit, a first parameter associated with a first game content arranged in virtual space, and a second parameter associated with a second game content arranged in the virtual space, the first parameter corresponding to a degree of adjustment attribute of the first game content, the second parameter corresponding to a mutable attribute of the second game content;
a starting step, comprising, with the processor, starting a match between the first game content and the second game content;
a first changing step, comprising, with the processor, automatically changing a third parameter, the third parameter corresponding to a positional relationship between the first game content and the second game content in the virtual space to be closer to a first target value at a certain time change rate;
an increasing step, comprising, with the processor, increasing a fourth parameter when a first task is achieved, the fourth parameter comprising a counter of a number of consecutive achievements of the first task;
a second changing step, comprising, with the processor, changing the second parameter associated with the second game content, by an amount determined based on the values of the third parameter, the first parameter, and the fourth parameter; and
a determining step, comprising determining, with the processor, that a user wins the match when the second parameter becomes a second target value.