My partner and I just finished Cozy, our first collaborative effort. The game is a pixel-art horror point-and-click (what a niche) with an emphasis on atmosphere and how the player's environment influences their mood.
We aimed to make a game which started mundane and relaxed, and escalated in tension steadily as play progressed. The goal was to frighten and unnerve our players, without relying on sudden loud noises in place of actual suspense. As far as the plot goes, I'll leave that to
the game page, but we don't want to spoil anything in summaries and screenshots.