Flower is, perhaps, the most unlikely inclusion on my list of favorite games. I tend towards very actiony games where you kill people/monsters in dope ways. Dark Souls, Diablo, Darksiders, and DOOM. You'll find something more puzzle-based on there from time to time, such as The Witness or Outer Wilds. You might find some wholesome platformers like Sly or Mario.
Rarely will you find "art" games that solely exist to impart an "experience" with minimal gameplay. I've played quite a few of these, actually, they just rarely resonate enough to get five stars. Flower, on the other hand, has been like a church bell in the background of my life for the last 14 years.
I usually don't care much about the music in the video games I play. Often I'll turn the music off entirely, especially if it's a game I'm playing with a friend or while listening to podcasts. I almost never listen to video game music on its own. The flower OST, on the other hand, I've listened to over 50 times according to lastfm. It's my happy place. It's what I listen to when I'm stressed or feeling particularly nostalgic. When I want to remember what it was like being 18, on the cusp of adulthood, being in love for the first time. It's an album for muggy summer remembrances of summers long past.
The game itself is beyond basic, but I can't help but find it beautiful, even all these years later. The swaying grass, the ever-growing swirl of flower petals marching behind you, the way collecting them adds beautiful improvised notes to the spacious music.
The driving theme of tension between urban development and nature is perhaps rote to many, but is a particular weak spot for me, having been born in a rural Louisiana town with a population density of less than a thousand people per square mile, before moving to a suburb of Chicago in 1st grade with 3,500 people per square mile, then moving into a neighborhood in Chicago proper when I was 20
with 11,000 people per square mile.
My entire life is a story of moving farther away from nature. Every summer in Chicago brings with it bittersweet memories of running through Louisiana forests, of playing in my aunt's backyard, as big as a football field, and plucking honeysuckle from the woodland's edge. Summer will never be just a season for me, it's a particular time and place.
Many pieces of media have tackled this theme, but none hit as hard for me as Flower did and none capture the nuances as well as Flower does. It's not as simple as nature good, city bad. They both have their own beauty, and they create an entirely new beauty when mixed together. Natural spaces within cities can be just as powerful as my aunt's backyard. I've read entire books on urban planning because of Flower, just to try to understand the effect certain spaces have on my brain. If that's not art, I don't know what is.