Dungeon Overlord: Unexpected Results of Worshipping Outer Gods

"Worshipping the Outer Gods isn't really the best idea, and for many, it won't really end well.
For me, though?
At the start, it was shit, but now I am Dungeon Master of the Interdimensional Dungeon, tasked with Harvesting Fate, Magic, and Life from the worlds. I am bringing the End Times to the worlds in the name of the Great Old Ones.
Oh yes, did I tell you that I managed to have several beautiful, overpowered wives on top of that?"
- Archaon the Everchosen of the Great Old Ones
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Themes: A Song of Ice and Fire (ASOIAF) / Game of Throne (GoT), Dragon Age, Warhammer Fantasy
Additional: Dark Souls and Bloodborne Characters
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Tags: Antihero Protagonist, Army Building, Artifacts, Charismatic Protagonist, Cunning Protagonist, Demons, Dragons, Dungeon Master, Dungeon, Dungeon Crawling, Evilish Protagonist, Fairies, Fallen Angels, Game Elements, Gods, Handsome Male Lead, Hard-Working Protagonist, Humanoid Protagonist, Loyal Subordinates, Male Protagonist, Management, Monsters, Multiple Realms, Proactive Protagonist, Protagonist Strong from the Start, Ruthless Protagonist, Servants, Slaves, Spirits, Strong to Stronger, Sword and Magic, System