X-Half-Life Deathmatch 126.96.36.199 Source Code package (updated after release)
X-Half-Life: Deathmatch (XDM) SDK
version 188.8.131.52 (updated!)
release 20170301 (installer)
platform Windows, GNU/Linux - contains Win32 DLLs with PDB (program database for out-of-the-box debugging).
This package is a self-extracting RAR archive.
Contains source code and compiled Win32 binaries.
Projects are for VS2010, but code should be portable to other compilers.
Requires password to install, which is easy to get if you played the game. Instructions provided during installation.