What is Achievement System?

Hi,

As the title tells, my question is what is that achievement system? What is it for? I've seen threads about it but they all are non english and couldn't understand anything from translation, can somebody explain to me what is that system but in english please?

As the name itself tells you the archivementsystem is something to grant archivements from different stuff you do ingame. If you ever played other MMOs like WoW or similar you may have already seen it. In Metin it's a bit more "easy". You get a point by killing 10 other players for example. Also you can trade these points for equipment or other stuff using an NPC.

hmm actually no i never played any game other than metin, sounds interesting im gonna try it thank you :)

Can any one tell me how to add system achievements in my server client ?