Know by Heart is a sentimental adventure game that revolves around the theme of accepting loss. Developed by Ice-Pick Lodge, the game is set in a post-Soviet provincial town in Russia. The game's plot, music, intuitive gameplay, and atmospheric mini-games work together to create an illusion of returning to one's childhood and growing up, with the feeling of time slipping through our fingers.

The game follows the life of Misha, the protagonist, who is stuck in a monotonous and dead-end job until his school crush returns to town. This brief but tumultuous episode of the town's life is interwoven with the story of a gang of childhood friends coming back together. The game mechanics represent the thoughts and memories of the protagonist, and the story has non-linear elements and several endings. The game features a collection of evocative mini-games and a piano soundtrack composed in modern neoclassical style. Know by Heart offers about 5 hours of sentimental adventure and a nostalgic trip down memory lane.