Excluding all games you have seen mentioned by anyone on the internet, what is your favorite game?

Cogmind! I found that game after I bought Caves Of Qud. Technically it wasn't recommended to me by anyone directly (just found it one day scrolling through Steam). Its an excellent RPG where you play as a self-assembling robot trying to escape from a massive robot colony thing. Haven't gotten super far into the game yet but I absolutely love the gameplay and sound design. Check it out!

Also, NES Open; the greatest golf game ever made in my opinion. I've had it since I was a kid and have never heard anyone talk about it online. Simple gameplay, high skill ceiling. Exactly what a golf game needs to be!