i would say 4gb-8gb of ram at least. but i am not sure. the game is using a visual novel engine called visual novel maker. it utilizes a lot of pictures, so the more you see in the game (currently content for 85 days) the more likely is the chance for memory leak to occur. especially when you skip through the animated scenes using the control button. memory leak can always occur, even on newer devices. so I am not sure if a new laptop will fix those issues...just saying that this game was developed for windows 10, not 7.