https://store.steampowered.com/app/3429040/Celeste__Luna_Hentai_Puzzle_18/
"Celeste and Luna: Hentai Puzzle 18+" is a puzzle game where players assemble images of girls by rotating puzzle pieces. Once completed, the puzzle appears in the gallery.
New Game - Celeste & Luna: Hentai Puzzle 18+
Source: Steam Community (opens in a new tab)