Are movies art?
Is music art?
Are paintings art?
Some are. Some aren't.
A painting is a painted picture made by a painter.
Music is collection of sounds made by a musician.
Movie is a collection of pictures made to come quickly one after another to make an illusion of moving pictures and it's often mixed with sounds, and it's made by a movie director and whoever helps him.
The word art can be used in different ways.
We can say something like "the art of making movies is something" or "the movie is art."
We can say the act of making a thing as an art. We can say the end result is art.
I think sometimes we have these two things mixed up.
Should we say every end result that comes from someone's art would be art?
I think that especially in video games people are quick to call the full game a piece of art if it only has something that reminds them of other things they consider art. People think classical music is art so to make a game feel more like art they will put classical sounding orchestral music on a game. Or they will look at the surface of the game and compare the visuals to other drawn things they consider art and then call the game art. Or they have watched movies or read books that have made them cry and they consider those movies and books art, so if a game makes them cry they will call the game art.
Making a visual thing does not mean the visual thing is art. It just means one has used the art of something to create something.
I personally think that art has lost its meaning a long time ago and we today call art entertainment and entertainment art. That's fine. But if I personally go to look for something "deeper" than that, I will look first and foremost something in a work that speaks unspeakable things. Spoken words, written words and drawn pictures become art when the meaning of what is said and shown tells us things we can't explain in other ways. There needs to be an underlying thing going on that by words or images or sounds becomes known even if it's not directly said. But then again, not everything hidden makes the thing art. Just having a political message hidden in a story doesn't necessarily make it art. The hidden thing must be about abstract things that are hard to put in words but what we can still understand. A political message that goes far into revealing things about the human condition I can see as art though. If we take a look at The Bible for example, I don't think every book in it is art or that every line of text in it is art. The long-ass list of people and their relatives through many many generations in the Bible is not part that is art, but a Psalm that tells things beyond the words is art.
I haven't played Journey, but for me that seems like a game that I could consider to be art, at least from all that I have heard of it. And it's not the visuals or the sounds that make it art. It's what it wants to reveal beneath the surface.
tl;dr
there is an art to make things, but the things we make aren't art by default