Hi there, it's been a while since I last came here and since this game isn't in the master-list, I'll go ahead and post it. This game has been released for quite some time now but only started playing after seeing Pewdiepie's video. I am ashamed I didn't discover this sooner.
Ib (pronounced "Eeb," similar to “Eve”) is a freeware horror adventure game by kouri made in RPG Maker 2000.
A young girl named Ib visits an art gallery with her parents.
While observing the many exhibits, she suddenly realizes she is alone.
And in her search for others, she finds things awry in the gallery...
The game is focused on exploration and puzzle-solving.
There are no battles, and it does not demand quick reflexes.
It's designed to be accessible to all kinds of players, so enjoy.
Source:
Ib
IMO: Even for a short one, it is one of the best games I've ever played mainly because of a very wonderful story. Definitely worth your while!