So, basically every verse is just Em (put some hammer ons in there), the chorus is 
G A and the bridge is Em A.

I figured out this chord arrangement for the community at ultimate-guitar.com
If you're seeing it on a different website, then you're looking at a site that's stealing content.

Enjoy!

Em (022000@1)EmHordes (022000@1)of faces, empty eyes

I see nothing new

Seasoned schemes of slimy curs

Offer up their flu

Am I beast or am I human

Am I just like you

Power seething, really reeling
                      GReaching (320003@1)out for you
           AAm (x02220@1)I demon? I need to know

Em A Em A Em

EmFaces (022000@1)of a million hells rage inside these veins

Pounding out deserved pain to anyone in need

And am I beast or am I human?

Am I just like you?

Power seething, really reeling
                     GReaching (320003@1)out for you  
           A (x02220@1)              GAm (320003@1)I demon? I need to know
           AAm (x02220@1)I demon? You need to know

Em A Em A Em

EmEvery (022000@1)world and every limb

Torn asunder base

Everything I need is me, everything I am

Am I beast or am I human

Am I just like you

Power seething, really reeling
                      GReaching (320003@1)out for you
           A (x02220@1)              GAm (320003@1)I demon? I need to know
           A (x02220@1)               GAm (320003@1)I demon? You need to know
           A (x02220@1)               GAm (320003@1)I demon? You need to know

Em A
I am
  Em (022000@1)name="chord_x02220@1">A
I am
  Em (022000@1)I am