We will release a Steam optimized Rats-Mod Client and a Linux Server version within the next few days.
Now I want to say that there is an Steam Dedicated of Rats-Mod: 62.93.201.59:27900
If you don't know how to install Rats-Mod for Steam now, wait for the optimized Version an please don't use the flamethrower on this server until the Server Patsch is released, or the server gets crashed.