For fun I’m going to try listing as many Greek deities as I can from memory, this will pale in comparison to the real total but it will be fun nonetheless (I’ve probably made many spelling mistakes)

1. Zeus, king of pantheon of the gods who rules the sky and weather etc.
2. Hera, wife of Zeus… one of the goddesses of fertility? And peacocks?
3. Poseidon, god of water and horses and earthquakes
4. Hades, god of the underworld who has a helm of invisibility
5. Persephone, daughter of Demeter and wife of Hades goddess of spring
6. Demeter, goddess of agriculture
7. Hermes, god of messengers and thieves, has winged shoes
8. Dionysus, god of wine and festivities
9. Aphrodite, goddess of beauty (born of the corpse of the father of the titans… Ourous?)
10. Artemis, goddess of strategy …and the moon?(multiple weird birth stories but all from Zeus’s body if I recall)
11. Apollo, god of the sun, son of Zeus
12. Ares, god of war
13. Phobos, demigod or lesser god of fear, related to Ares
14. Demos, same as above but for “terror”
15. Hephaestus, god of machines and husband of Aphrodite
16. Hestia, goddess of the hearth
17. Lethe, river in Hades and god of sleep
18. Eris, goddess of chaos
19. Prometheus, titan who defied Zeus to give humanity fire and got his liver ripped out by eagles indefinitely
20. Helios, titan of the sun (having multiple deities for the same thing happens a lot)
21. Kronos, titan of time
22. Gaia, Mother Earth and mother of titans
23. Nyx, goddess of poison? Treachery?
24. Charon, ferryman/guide of the dead (id call him a deity since people give him “offerings”)
25. Hercules, half human, became a god via golden apples after completing tests intended to kill him
26. Europa, titan, i don’t remember, exploration? She’s the namesake of Europe though, also I think she’s the one who fucked Zeus when he was a cow or something.
27. Vulcan, titan of fire? Volcanos?

I don’t remember if Orion the hunter is just a hero/demigod or if he is a god. Same for Perseus.

Damn. That’s less than I thought. Can I name all nine muses still?

1. Calliope (voice)
2. Erato (you know)
3. Uterpe (joy? Also I feel like there’s another name but I only remember this one because it’s weird)
4. Thalia (song? )
5. Urania (poets?)
6. Clio (history?)
7. Polyhymna (geometry?)
8. Melpomene (tragedy)
9. … I want to say turpentine which is definitely wrong, but I think it does begin with turp- and she’s the muse of dance?

Idk like half the muses are muses of song and there’s significant overlap in all of them if I recall correctly.

Anyway it’s late so I’m going to bed, I’ll see how wrong I was when I woke up lol

Oh also I have never played the game you mentioned but I have siblings who were very into the Percy Jackson books lol