Dude omg I had totally forgotten about that song from Undertale in particular. I feel like I could dissapear for a whole week while playing that game, it's just that relaxing and welcoming overall.
I'm really having the feels for wanting to play it again... But I also wanted to mention I liked the other songs you put alongside that one. The Cave story one really got me lulled and interested. I might play it too!
Really great songs my dude, you succesfully made me relax and drift off.