Based on a downgraded branch by @ninjalulz, which according to the file 'definition.h' is TFS 1.2. The original Forgotten Server is a free and open-source MMORPG server emulator written in C++. It is a fork of the OpenTibia Server project. Custom client included (7.72 client with 7.4 dat/spr/pic).
If you need help, please visit the our OTLand forum thread.
We use the issue tracker on GitHub.