Synergy has the ability to include other Source games and mods, making it possible to play them cooperatively in Synergy.
NOTE: changing the games or mods you load in Synergy, will require you to restart the game - changes do not take effect until you restart the game.
NOTE: it is best that you have great knowledge of Hammer Editor and Source in general when creating new include files for a game or mod.
The steps to include an additional game or mod in Synergy, are as follows:
If you wish distribute your game or mod include files (.edt, .inc, .dat, ...), you should place all of your files in an archive that preserves directory structures (.zip or .rar file).
Typically, you're going to have:
Once that is complete, you may upload your archive to any place you like. Best place to do so of course, is the Synergy Mod Forums.
If you wish, you may also submit your files to us via email at firstname.lastname@example.org. We'll take a look at them, test it (if we can) and possibly even include them in our next update.