Celeste

Celeste takes place on a fictional version of Mount Celeste containing several areas. It is seemingly haunted, housing many strange occurrences. The protagonist, a young woman named Madeline, decides to climb the mountain to challenge her anxiety, stubbornly persisting until she reaches its summit. Upon arriving at the mountain's base, she meets an elderly woman called Granny, who warns her against climbing it. After ignoring her advice, Madeline encounters an abandoned city wherein she meets Theo, a social media-obsessed traveler from Seattle. In the next area, Madeline experiences a nightmare in which she encounters a part of herself in the mirror, a personification of her anxiety and depression called "Badeline", who chases her out of the area. Badeline doubts Madeline's ability to successfully reach the summit, and says she will stop Madeline from continuing to save her from climbing unprepared, describing herself as Madeline's "pragmatic part".
Madeline then enters the Celestial Resort, an abandoned hotel, and meets Oshiro. Oshiro, a ghost who owns the abandoned resort, struggles to leave his past behind and lives in denial. He tries to convince Madeline to stay and improve the resort's poor condition. After she agrees, Badeline appears and taunts Oshiro, saying that Madeline only helped him to fuel her own ego. Believing Badeline, he becomes enraged and chases Madeline out of the resort. After navigating a windy ridge, Madeline reaches Theo at a gondola lift. Badeline halts the gondola's motion, causing Madeline to have a panic attack; Theo helps to calm her down. The two arrive at an ancient temple, where Theo gets trapped inside a crystal until Madeline frees him. After speaking to Theo, Madeline gains the confidence to confront Badeline and says she wants to abandon her. In retaliation, Badeline throws her down the mountain. Madeline then finds Granny, who suggests that she seek resolution instead of abandonment. Madeline then searches for Badeline, and after a chase, Madeline apologizes to her. The two reconcile and vow to climb together. After reaching the summit, they enjoy a strawberry pie with Granny, Theo, and Oshiro.
About a year later, Madeline meets with Granny to explore the mountain's core. The two go on to develop a connection to each other before Granny dies. Mourning her death, Madeline visits her grave. Madeline sees a mysterious bird at Granny's grave. Believing the bird to be her reincarnation, she decides to pursue it through space in hopes of locating Granny. Badeline is against this idea and abandons Madeline, forcing her to chase the bird alone. Badeline later returns, attempting to warn Madeline that she is dreaming and that she needs to wake up. Despite initially refusing, Madeline later concedes and instead decides to free the bird. Madeline meets Granny in a cloud-filled area and apologizes for not attending her funeral. After waking up, Madeline is seen speaking to Theo on a video call, who reveals that Granny was friends with his grandfather.