Montti Constanttini is a first person horror puzzle game where you play as Jack, a little boy, who is can explore his dark spooky house. Find your stuffed animals and pack them away before you run out of time.
One of the most interesting features in Montti Constanttini is that Jack can look very closely at any object in the game. The perspective of the camera and Jacks smaller size give you more flexibility to look over the edge of tables or down into a box.

https://warvision.itch.io/montti-constanttini

Montti Constanttini was built in Unreal Engine, so you will need to use Proton GE and DXVK for it to run properly. My GeForce GTX 1060 was able to handle the game perfectly in PlayOnLinux.

Specs:
Mint 19.3 64-bit
GeForce GTX 1060
Nvidia 440.100
PlayOnLInux 4.3.4
Proton GE 5.9
DXVK 1.7 64-bit