Hellgate

An interdimensional portal has opened in modern-day London. Earth has been overrun by demonic creatures, and humanity has been decimated. The world's last hope lies with the Templars, a secret society of sentinels that has stood watch against the forces of hell for centuries. Fortunately, the Templars have evolved with the passage of time, preserving their ancient knowledge while keeping step with Man's technological progress into the twentyfirst century. Now they must meld science and magic to save what remains of humanity and forge new weapons to win back their world.