This is an ooold project I wrote in 2002-2004. The server runs is written in C, and the client is written in pascal.
I don't remember which version of Delphi was used, and I don't know how to compile it now.
Sources files are here only to read them because that's fun (at least for me).
You just have to launche trouduk.exe
(tested with wine on Linux, don't know if it works on Windows).
Change the server to connect to, as neither inter-system.net or coderz.info domains exist.
You can use the symlink.me:5123
public server, or localhost:5123
if you run TDKD by yourself.
See TDKD on https://github.com/rbignon/TDKD