Wurm Online: Okay, i get it, most of the kids my age would never play something so... slow. But it's an awesome game. Similar to Minecraft (actually, Notch was working on this one before he started Minecraft... I wonder where the ide came from...?), but much more mature. And I just LOVE this game, but I know no one else (except for my parents and brother and uncle, but my whole family knows about it because of my uncle).
Deep Sleep, Little Talk At The Back of Beyond and Deeper Sleep: I found these three amazing games on Armorgames. They are all indie games, done by scriptwelder, who has done many other awesome games that no one knows. But these three are my favourite. Deep Sleep and Deeper sleep are the same series. They are point-and-click horror/thriller games. If you play it with friends during daytime, they are not scary. If you play them alone at night... *shudders* I actually wasn't brave enough to play Deeper Sleep to the very end yet. Little Talk At the Back of Beyond, on the other hand, is not scary at all. But it is incredibly sad. It is a small game about talking to someone. Anything else I would say would be a spoiler. All three are very good, but no one knows them.