Hello everyone, as I played this game here are a bit of informations about it:

• The game is old but still good, it uses Source engine (Valve engine) so don't expect amazing graphics.
• It is a multiplayer game, with people still playing it, servers having different game mode.
• So what makes the game interesting is his gameplay, you have sevral modes, PvE or PvPvE, where when players are killed they become a Z and can gather around him IA controled zombies.

I stoped playing it because of constant C++ errors, forcing me to do a files verification each time to fix it (I wasn't the only one). I hope it has been fixed by now.

Keep an eye (or two, or more ;) ) on the Announcement topic for net giveaways.