There are no kind of progress in here like you can unlock all the sex/service scene and all clothing for yor after playing for around 30 second which really makes me kind of boring to play it. But overall its still good because the animation were smooth and also there are some moaning sound in there which is not really bad (although i heard that moaning sound were really similar like in another h-games). Keep up the good work.
P.S for those who wanted to see lewd anya that bad you can just go to rule34 website and enter anya tag instead of keep asking the same question again in here which is kinda annoying and disgusting.