Over a six-day period from Eccky's birth, Eccky grows and ages three years for every one day of gameplay. Thus, in six days, Eccky develops from a cooing baby into an eighteen-year-old young adult with its own character. Every Eccky is unique at birth, and the way in which the users raise their Eccky further individualizes Eccky's demeanor and characteristics. On the sixth day, or upon turning 18, Eccky leaves the house to venture off into the wide world, and the game ends.