Cool old 3D exploration and interaction... experiment!
In Castle Master 2: The Crypt you are not going to be wondering about in an actual castle, but in this series of rooms, all consisting of the least amount of polygons and colors that could have been produced in the 1990s. Still, it's a proper 3D game, so no shuffling from frame to frame, you will actually be able to see things from any angle and move as much or as little as you desire. The puzzles in the game are also cool, not because they are hard, but because the elements you'll interact with are like from a dream of GlaDOS! Yep, the simplicity and seemingly disparate nature of the graphical elements paint a minimalist 3D world, which sure can be very interesting. Quite how long lived depends on your ability to support fiddling about and, well, similar takes on one and the same kind of idea. Yeah, it's a game for those that want to look at visual artifacts, interact with them and have a brush with them. Quite eerie as well, unintentionally so, which is always the spookier kind of eerie!