Tibia

Tibia is old, but gold, and it has lived all this long for a reason, and that is: it is a really good game. It is slow, like any other old-school game, but the bigger sense of progression is so fulfilling and worth it. It has lived through many updates and changes, ups and downs, but the fact there are players that still come back to Tibia (or the OpenTibia versions), and after so many years, even a decade, speaks for the game itself and what it offers. The simple and cool pixel sprites world that it has is crazy nice.