<p>Step into the sturdy boots of McJagger and take on an army of the undead! In the standalone spin-off to All Zombies Must Die!, the only thing that really matters is your score. Build your multiplier and rack up as many kills as possible to become the best zombie-slayer in Deadhill; to that end, your mission remains the same: all zombies must die.</p>

No More Room in Hell is the ultimate ruthless and unforgiving co-operative zombie survival experience on the Source Engine, delivering award winning survival horror gameplay with dozens of weapons and multiple game modes.

Best Zombie PC Games - Page 14

All Zombies Must Die! Scorepocalypse

No More Room in Hell