This is my second favorite video game of all time, just after Minecraft. That is saying a lot, seeing as I spend roughly 4 - 5 hours a day playing Minecraft.
I like Minecraft because you can create cool things and explore coo worlds, but Undertale...
Undertale just gives me the feels. I've never completed a game of Undertale without crying at least once. The pacifist route is so satisfying, and even though this game was made in 2013, I still play it a lot.
The characters are so beautiful, the feeling of the game is amazing, and just everything about it is so beautiful and amazing and spectacular. I could go on and on about this it's so good.
It's just an amazing game that's so good it can't be described in words.