Pokémon Odyssey walkthrough
10 parts, one per checkpoint Pokémon Odyssey’s own documentation defines: the areas each one opens, the wild Pokémon and trainers in them, and the fight at the end of it. Everything here is read off the game’s own files, so anything it doesn’t state isn’t claimed.
Part 1: Talrega and the Coastal Road — before the Labyrinth
10 areas · 2 trainers · Ethan, Olympia
Part 2: First Stratum: Emerald Grove — Lv. 18 cap
5 areas · 1 trainer · Captain Karin
Part 3: Second Stratum: Sand Sea of Golgonda — Lv. 30 cap
10 areas · 3 trainers · Pirate Ship, Brody, Captain Rockey
Part 4: Third Stratum: Magmatic Caves — Lv. 40 cap
8 areas · 6 trainers · Dirg, Malna, Zero and 3 more
Part 5: Fourth Stratum: Azure Rainforest — Lv. 50 cap
14 areas · 5 trainers · Olympia, King of the Sea, Brady and 2 more
Part 6: Fifth Stratum: Abyssal Shrine — Lv. 60 cap
13 areas · 8 trainers · Aimée (Abyssal Princess), Sea Traveler, Abyssal Aberration and 5 more
Part 7: Sixth Stratum: Frozen Grounds — Lv. 65 cap
7 areas · 3 trainers · Lixin (Corrupted), Dinogator, Kitt (Nephilim)
Part 8: Seventh Stratum: Porcelain Forest — Lv. 70 cap
7 areas · 2 trainers · Captain Gutrune, Avid Dragon
Part 9: Eighth Stratum: Cyclopean Haunt — Lv. 75 cap
6 areas · 4 trainers · Frey, Kitt (Nephilim), Progenitor and 1 more
Part 10: Post-game — Lixin's Café, Claret Hollows and the Abyssal God
4 areas · 16 trainers · Brody, Karin, Rockey and 12 more