Hi if you’re looking for full completed games here are a few. Nowandthen, Holstein girls, Reclusivebay, Forgotten Paradise, Sisterly Lust, Through Spacetime, and Star Maker Story. Just a few I have collected. Hope this helps;) Little Tip you may need to go to some Dev’s Patreon page to download the full game like My Real Desire. So always check Patreon pages most are free to join.
Not sure which game you played, but Once in a Lifetime not only tied up the main plotline with a pretty bow, it also gave the MC and all his lovely ladies a wonderful happy ending. (If you're not seeing it, though - check their stats regularly to make sure you haven't locked one of them out. The harem ending is the "good ending.")