There was a old demo (1-2 year old) of VN with rpg elements (probably on Ren`py) where MC appears as only male in world of succubi. You were supposed to fight with succubi to go on other layers. Definetly remember goblin girl, but don`t remember other girls. During the fight you and succubi used lewd actions on each other (blowjob, boobjob etc.). There was a page on itch.io, but can`t find it now, the graphic was 3d. Thanks in advance and sorry for bad english