An RPG Maker horror game about a girl, the titular Ib (Meant to be Eve but because of language issues the fan translation of it made it Ib), going to an art gallery for an artist named Guertena with her parents. She ends up getting transported to an alternate world filled with the living paintings/sculptures/art pieces of Guertena's works, most of which are hostile and deadly, and trying to find a way to escape and return to the normal world. One of the amazing things about it at the time, probably even now actually, is how many unique assets it has. But also something that endears it to players is the bond between Ib and Garry, two people with nothing in common trying to get out of an art gallery nightmare.
It was released 10 years ago as a free downloadable game and, as I said before, made a huge impact on the indie video-game scene with how well done it was despite not being a big budget game or having any monetary return for the creator. It had a similar effect like Cave Story in encouraging people to make their own indie games. You can probably still find the original somewhere for download if you want to try it, though it does show its age a bit graphically.