GraviNULL is a multiplayer first person Zero Gravity mod for Source.
The server files required to host a dedicated server for GraviNULL. Read more for instructions if you need them.
Below is a guide to setting up an SRCDS based GraviNULL Beta 1.1 server.
SRCDS is a stand alone dedicated server, it doesn't run through Steam. So grab yourself the Windows version of the HLDSUpdateTool from SRCDS (sorry, this is Windows only, contact me if you want a linux and help me to actually test it) and save it somewhere.
Once it's downloaded, run the tool and go through the installation process. You'll need to install it to somewhere on your server (or home computer for testing), and in a location without spaces in the folder name (e.g. C:\SRCDS\ or C:\Servers\SRCDS\).
Once it's finished installing, go to Start; Run and type cmd which opens a command prompt and enter the following:
This gets the latest version of the HLDSUpdateTool which is used to download the server files. You then need to type the following into the same command prompt:
hldsupdatetool -command update -game "orangebox" -dir C:\srcds\
This step can take a while depending on the speed of your connection as it's downloading all the files it needs from Valve's servers.
Once that's finished you'll have all the files you need, but there are a few other steps needed to get the server working.
The next step is to open the SRCDS directory and inside you'll find two directories, one called "orangebox", the other called "hl2", move the "hl2" directory into the Orange Box directory and overwrite any files it asks you about.
Copy the extracted GraviNULL directory into the "orangebox" directory, so it sits beside the "hl2" directory.
At this point the server should be good to go, so the final step is launching the server, which can be done on the command line with:
srcds.exe -console -game GraviNULL +map hz_hazardforce -maxplayers 8
You could create a batch file with that code in for easy server launching too!
So there you go, nice and easy, if a little time consuming!