Steam sadly disagrees, so there it's blocked in multiple countries. We kind of hit a middle ground, but yes, without nudity or sex, you can argue it's more of a game with a lot of very specific "fan service" than a "nsfw" game. Some people like that about the game, while others don't, which is why some mods are in the works that add more lewdness to it, in addition to the vibrator mod that already comes with the full game.