This Sunday (October 19, 2014) the whole portal is playing Sven Coop, fending off monsters on TurretFortress.
Start: October 19, 2014 15:00 (Moscow time)
Slots: 32
Venue (server address): s20.hldm.org (195.191.250.139:27015)
Download Sven Coop: https://hldm.org/files/others/208-sven-co-op-48.html
Sven Co-op - a co-op modification for Half-Life where players must work as a team to kill computer-controlled monsters, solve puzzles and complete various objectives (listed in the MOTD). The game is completely free; you need an installed Half-Life client to play.
TurretFortress - a map by the developer "Nih" in which monsters run at the players, who have to fend them off by placing turrets. Each player has his own task: someone picks the spots for turrets, someone hands out the crates without which a turret cannot be built, someone repairs the generators and computers that break down from time to time, and so on. There are 12 waves in total. Detailed TurretFortress guide