I saw someone doing a thing and now I gotta do it as well. My - sort of - Top 25.
The thing that I struggle with often with lists is, do I go for something that I loved once and haven't touched in a long while or something recent that amazed me? So I went with a little special personal grading: Games that changed me in a way. Maybe not for the better, you can probably tell which one made my life worse, but they were all special in some way. It somehow ended up being a mix of the most obnoxious obscure gamer you know and the one guy who only plays recent big name releases.
Also making this I realized that, with a few exceptions, the thing that leaves a biggest impression on me from media is making me feel a lot. That usually is sadness, but there's a little space for other emotions.