Important entries are marked with an *.
Arrian - The Campaigns of Alexander
Herodotus - The Histories*Homer - All*
Howerd, Robert E. - Kull, Conan,* and Bran Mak Morn cycles.
Leiber, Fritz - Swords cycle***
Livy - The History of Rome
Lovecraft, H. P. - "The Doom that Came to Sarnath," "The Lurking Fear," "The Mound," "Rats in the Walls," At the Mountains of Madness
Merrit, A. - The Moon Pool, "the People of the Pit"
Polybius - The Histories
Plutarch - Lives of the Noble Greeks and Romans*
Smith, Clark Ashton - Hyperborea, Poseidonis, and Zothique cycles
Virgil - The Aeneid
Hercules in the Haunted World***
Jason and the Argonauts (1963)*
The Mole People
The Seventh Voyage of Sinbad
Sinbad and the Eye of the Tiger
The 300 Spartans*
To be read/Watched:
Appolonius Rhodius - The Argonautika
Shaver, Richard Sharpe - All
Others as suggested by readers
A note on Shaver: I've read a lot about him and tend to work quite a bit of the ideas from his work into my games already; however, for this project I think I might actually want to tackle reading him in his own (heavily edited) words.