The game takes place in 2009-2011. Call of Blood is a cinematic single-player first-person shooter that immerses you in a gritty survival experience. The world is engulfed in a zombie outbreak, but the walking dead are far from your only problem. You became the most wanted target after eliminating an influential politician who launched three dangerous reactors that could kill half of humanity. Now, regular groups of enemies and elite operatives from the (Vurs) are hunting your head. A group of scientists is the only key to salvation. They offer you the dangerous deal of a lifetime: break through the cordon and blow up the sinister reactors from the inside.