What is needed to create clientless bot?

Hey guys, for few days I'm very fascinated of clientless bots, maybe there are people who made bots like that or have some knowledge about creating it.
I need some hints, what's exactly learn or what's type of skill i need.
i know C++, but definitely sth more is needed to do it, knowledge of library, network or even reverse enginering

so im waiting for some advices ^^

You dont need C++ you can use many different languages. Evrything that can open a tcp socket should work. If you use C++ u should know how to include a lib or how to use Qt. Everything u need Reverse Engineered is already done by people and available on this forum. And than if you know how to programm its not that hard.

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this is the hardest part. Get it to work and the rest is openening a socket and sending packets

You need to know the crypto of NosTale, you can download it for free in EPVP

I'm sorry I chose the bad section.

First try to connect on one of this nostale servers with TCP sockets :
You will need to use Crypto that MarsBounty gave you to encrypt the login packet then send it to one of the server
Try to get a response from the server and it will be a good start

I've already done clientless to nostale.