Originally, Penance, the Greater Spirit of Justice would banish the fallen Gods to The Void rather than turn them into Titans. This worked for a while, but gradually the Gods would regain their consciousness and some sembelnce of power and begin pushing themselves back into the realms. These became known as theEldritch Gods and are the reason that Penance now strips a fallen God of their sentience and mind before casting them down as Titans.
The Eldritch Gods are the only living beings within the Void, unable to conjure a physical form. They yearn to return to the mortal realms but are kept imprisonned by Penance, undetectabe and irretrievable. They have been twisted into grotesqu perversions of their former domains, now beings of madness and chaos that occassionally stretch their tendrills into the mortal realms to gain a foothold in the hopes of amassing enough of a cult following to conjure themselves back into being. One benefit of residing within the Void is that nobody can detect them, not even Penance, meaning their influence can grow secretly for decades before the cult is discovered and removed.