http://gpvdip7rd7bdy5gf7scl3rzgzgzckqw4sqxbmy6g3zijfwu4lz3ypbyd.onion/Personal/reviews/games/htol.html
The game is mouse/pointer-oriented , and you play as the "light firefly" that the girl Mion follows (which can interact with specific objects too, like plants), and the "shadow firefly" that can interact with certain objects through the shadows, which are interesting mechanisms.