- Epilogue
- File 74: Journey’s End
- File 73: Culmination
- File 72: Ascension
- File 71: Sarvus
- File 70: Luathenisia’s Fury
- File 69: Return Trip
- File 68: Tyrant Deviljaw
- File 67: Synergy
- File 66: Symbiosis
- File 65: Beasts of War
- File 64: Storming the Citadel
- File 63: Ultimate Machine
- File 62: Hessborogh’s Depth
- File 61: The Tempest Core
- File 60: The Crystalline Cradle
- File 59: Descending the Brainstem
- File 58: These Things
- File 57: Mutual Study
- File 56: The Primordial Mindscape
- File 55: The Dark Sector
- File 54: The Slamstone Bottleneck
- File 53: The Marvelous Magma Flows
- File 52: Enthralling Neuropuppeteer
- File 51: Unexpected Reunions
- File 50: Igneous Regioneater
- File 49: Honing Skills
- File 48: Tandem Trouble
- File 47: Naaori’s Oxygen Excursion
- File 46: The Infernal Cascades
- File 45: Patient Tunnelfunnels
- File 44: Catching Up
- File 43: Crosswing Adaptraptor
- File 42: To Challenge the World
- File 41: The Exiles
- File 40: Insurmountable Obstacles
- File 39: The Silent Metropolis
- File 38: Anomalous Automata
- File 37: Platformback Rhombusoids
- File 36: Gravity Islands
- File 35: The Gusty Shaft
- File 34: The Gaping Crevice
- File 33: Naaori
- File 32: Daily Life in the Depths
- File 31: Ruaka Mahaai
- File 30: Amorphous Coordinorbs
- File 29: Spiralstone Hollow
- File 28: The Locals
- File 27: Lexicon Fruit
- File 26
- File 25: Antidote
- File 24: The Needle Woods
- File 23: Winter
- File 22: Summer and Autumn
- File 21: The Forest of Pressure
- File 20: Further Ruins
- File 19: Inexplicable Island
- File 18: The Stygosea
- File 17: Premature Departure
- File 16: The Shore
- File 15: The Woolly Borer Connection
- File 14: Questionable Decisions
- File 13: The Hatching of the Wamboloos
- File 12: Whistling Walltubes
- File 11: Whiteback Lasher
- File 10: Fungal Paradise
- File 09: Deception
- File 08: Bloodstalker Fantails
- File 07: Companionship
- File 06: Ruins
- File 05: The Upper Layer
- File 04: Sustenance
- File 03: Ringtail Troglohoppers
- File 02: Aeroplankton
- File 01: The Great Subterrane
- Prologue