That's a rather brutal question! I especially feel this way when playing gacha games. The main story barely progresses for years, while the same seasonal events keep coming around again and again. But then they celebrate another anniversary, and it hits me that both the characters and I have somehow gotten older. The longer a game goes on, the more I feel the passage of time, along with the inevitable sense of déjà vu and stagnation. It's a strange mix of nostalgia and existential dread!