why this game never completed

evrytime his update comes so small content :v
There's a few reasons:
-Like people said primarily more money, they treat this game almost like a MMO where content is constantly being added and there is no real end(except for the ending where you go back to your old life willingly)
-Building the framework for these games takes a lot of time, so building a new game with a new foundation means they would be slowly creating new characters and introducing scenes for them, could be like Island of Milfs where they take months to give you a simple oral or titfuck scene
-A lot of their fans like the female characters in Littleman and dont want the game to end because they want new fresh content for their favorites