De is now available through mod.io

There were similar threads in the past.  I think the summary is that the game is still not ready to attract a much wider player base, from a MP standpoint.  There is also a matter of integration with the Steam libraries, which the developers might not want to do. 

Disculpe, ahora si me funciona el mod, siento las molestias que les haya podido provocar, por cierto, buen trabajo, seguid asi

You probably disabled TLS encrypted connections to the multiplayer lobby in the past. See: