check out Virtues Last Reward-puzzle game/visual novel released in 2012, if you've played or heard of 9 hours 9 person 9 doors, its the sequel to that game. I highly HIGHLY recommend the full series. I had a lot of fun getting in and playing these games again, they're great to check out. Also, not sure how niche it is, but Journey is one of the better games I've played. It's interesting to me how only a little bit ago we were so reliant on controllers, in fact, I had to use a controller for all three of these games.
One of my favorite games ever is Cry of Fear, which was released in 2012. It was only a mod at the time, but it got made into a standalone game not too long after release. It is an indie game, but it was pretty popular during the horror let's play era, so I definitely wouldn't call it niche. I love the game's visual style and atmosphere and I have a lot of fun memories of playing the co-op campaigns with my friends in the late 2010s.