Chaos;Child

The player takes the role of Takuru Miyashiro, the president of his school's newspaper club, who experiences delusions. At multiple points throughout the story, the player gets the option to choose if Takuru should experience a positive or negative delusion, or neither: these choices affect the plot's direction, causing it to branch off from the main narrative into different routes. Source: Wikipedia, "[en.wikipedia.org/wiki/Chaos%3BChild Chaos;Child]", available under the CC-BY-SA License.