I know this game isn't exactly new but I feel really compelled to make a comment anyways. I never got to experience the main game Undertale for the first time since I didn't have a gaming computer and had to watch lets plays (I have one now of course), and Undertale remains one of my fav games of all time. This fangame is one of the best I've ever played in any fandom, perhaps because it stays true to Undertale's themes, but I definitely feel how it's a love letter for Undertale. If I had been able to experience Undertale blindly for the first time, I think I would've felt similarly to how I felt playing this game, so thank you for letting me go through those emotions.
Without getting too into spoilers, let’s just say that your actions have consequences, just like in the main game, and really made me feel it. I literally felt the weight of my sins in my chest, iykyk. I came in thinking this is just a silly, cool fangame about dating sans but I left literally feeling hopeless. And I don't even like sans that way. Derpychocho if you see this... I severely dislike you (affectionate)