Open world game set in the classical mediterranean world, with inclusion of various mythical figures, stories, and events.
Would include the Ancient Egyptian gods and myths, plus Roman, Greek, Babylonian, maybe some Persian.
Probably include Greece, Macedon, Italy, Sicily, Carthage, Egypt, Jerusalem, Babylon, and parts of Turkey.
As well as mythical locations, like Mount Olympus, Hades, the labyrinth on Crete, the fictional islands of the Odyssey, maybe Atlantis.
You would probably be playing as some Greek soldier, with the blessing of Zeus.
There would be a general push to explore where you like, fighting soldiers and monsters as necessary.
Travel by foot/horse, or by ship, or even Pegasus. And on a map both epic in scale, yet not boring to traverse or too long.
Maybe there would be some more linear/forced missions, like joining the siege of Troy, or maybe helping the Trojans.
And maybe freedom to create/lead kingdoms in war, whether it was a city-state or a nation.
Probably have some level of chronology, to an extent (Troy before Rome is founded), but shy from too much focus on the historical events. It's more fantasy than realism.