About
Knight Online is an MMORPG developed by Mgame Corporation. OpenKO is an academic project, built from the leaked original Knight Online source, to study how the MMORPG works; it has been updated to DirectX 9 and targets the game's 1298/9 version. It is in a very early state and cannot be used for a real server, with features such as upgrades, wars, and basic exchanges missing or incomplete.
How it differs from the original
The project deliberately avoids new features: it does not change client assets or the client-server network protocol, and the client must stay compatible with the official client and server, with only minor fixes such as UI behavior or added error messages.
Getting started
It is not currently playable as a real server. Setup guides for Windows (client, server, and tools via Visual Studio) and Linux (server only via CMake) are on the project wiki.
Known limitations
- features: Project is in very early development; server and client lack full or any support for numerous critical features including upgrades, wars, basic exchanges, and the Power-Up Store.
Additional notes
- Contributing
- The project's contribution rules forbid AI-generated code, since its purpose is learning.