Detroit Become Human goes on sale for $4 once in a while, and is great. It's a cinematic, episodic, story based game where you play as different androids that are struggling with ideas about what separates intelligent machines from humans. It has racism, immigration, political action, and genocide themes. Also the android that greets you at the loading screen makes comments about your game progress, sings to you, tells you random facts, and will get upset if you let main characters die. It's totally worth $4.