As you may have noticed we've brought back some rather unique HL2 mods.... "Games from the vault" if you will First up is an oldie we've had before: Hidden! This time around we've resolved some of the issues with the previous install. Also up is Sourceforts - a game where you build your team a fort and then defend it from your opponents- similar to the FortWars mod we used to run on Srs Bsns. Both games require you to install Source SDK 2006 from the Tools menu, and then the appropriate installers: Hidden:Source: http://www.hidden-source.com/downloads.htm SourceForts (fixed): http://www.sourceforts2.com/downloads/releases/SFFixed_0.3b.exe After that, fire up, connect (servers are on gs3.vaultf4.com:27015 and 27016, respectively) and enjoy! If you are having issues connecting and getting a version error, connect via the steam server browser or the console instead, don't use the in-game browser. It's a known bug with no ETA to fix unless I can hack something up to resolve it.