Thank you for the help given in this forum and for an entertaining game!
I am relative new here and a new user of this type of games. I just like to share my major challenges in playing this game. I think a part of the fun of this type of game is, that challenges are needed. But perhaps some of them do become unintended difficult for the players. I have searched this forum for help and found a few other persons asking the same kind of questions, that I got difficulties with. So the answers below is partly experienced and from other contributors of this forum.
I have seen a few here mention an unofficial guide, but I have not seen that guide yet. So my difficulties below are based on not seeing this guide.
1) The telephone got a list of girls with some information about the girls. But I did not recognize that some of the blue fields were clickable and leads to much more information. The clickable fields appear like data results and not as click fields like: "Events seen/total 0/18". I discovered my problem at about day 60 of the game, when I could not find information about trophies. Then I knew that I got something wrong.
Finding the information in this form did of cause help a lot.
2) How to get red underwear for Alice. It is hard to know how many more quests that may be available in the game layout, when you do not get more quests to make girls happy from Joy. It was a big help here, when somebody mention that there is a last 5.th quest that involves Brenda to be on Island. So this is a precondition for the red underwear for Alice. I guess that each of the five quests involves a specific girl to be on the Island, that do not need to be Alice.
3) How to find the Sauna. This involves Faye to be on Island and a special scene with a win in pull-ups.
4) How to have Aly to make weight lifting. An error in the provided game prevents Aly to do weight lifting, but an update fix is given in this forum and via Patreon.
5) How to get blue Lingerie for Yvette. The quest to get this Lingerie involves Yvette wearing her basic dress at the night bar and you got a drink with her. You furthermore need luck and some affection. When you save the game after you got the drinks from the bar, you can repeat the scene until you eventually gets lucky.
I hope that some may find my comments helpful.