[UPDATE (9/5/18)]: I'm going to completely overhaul the OP here and use it to list the unsolved ciphers that we have left to solve. Kudos to @RadZakpak and @WaterKH on that end.
...also this thread helped.
Let's get into this thing.
The Giant (1 unsolved ; 1 solved):
Der Eisendrache (1 unsolved):
Gorod Krovi (2 unsolved):
Revelations (10 unsolved):
(...jesus fuckin' christ, man...)
Issue #3 (1 unsolved):
Issue #4 (all solved):
...for the sake of context... holy shit, this took a lot more time than I thought it would to gather it.
Anyways... in an attempt to call back to the sanctity that was this OP, I'm gonna "obligatorily" mention @MrRoflWaffles. Just because I can, really... but also because he's one of the only other person I can imagine would be able to give attention to this stuff.
That said, guys!
Per aspera ad astra.