I've been playing tibia for a quite a long time and what I have seen is that most servers don't have enough content or it's to high of an exp rate. Most of the servers I see you can play for like 5 days and already have done all the quests and everything so there is pretty much nothing left to do, and then there are the servers where its like 3x exp and its to slow. All the servers I see barley ever release updates and even if they do its not much, as you can see all the popular servers have constant updates and the exp isn't to high, examples, Collapser, its only 15 exp but the monsters give a lot of exp and they are constantly updating. MortalOt, 20 exp, Unline 10 exp. What I suggest for most servers is either make it low exp but monsters give a lot kinda like Collapser, or don't release the server unless you have a lot of content, otherwise people can play for like a week and then there is nothing to do so they will just quit. I'm not sure if anyone else agrees with me but this is what I have seen in most servers.