A survivor's worst nightmare, they must barricade and defend their hideout. Survival The survivors (players) find themselves in dire straights as they are pitted against a seemingly endless horde of zombies.
The mod currently has two game modes Survival and Objective. It has been in development for several years (and later fully restarting from scratch in 2009) and was first released on October 31st, 2011. It will feature support for 8 unaffiliated human players who must cooperate or die against waves of NPC Zombies. No More Room in Hell (NMRiH for short) is a survival horror modification for Half-Life 2.