Biggest (I assume A is for anime) AVN has to be grisaia no Kajitsu or Fate zero realta nua with both taking over 4 days of playtime (100hrs+) to fully complete
u mean by reading everything completely and non stop right? I just played demo since I'm Android user u know,and it took me straight 14 hrs to just finish demo by reading everything at good speed.i m sure full game till now which is just 1/3 of original planned is way more than 4 days of playtime needed to complete.