MIO

Complete Walkthrough - MIO: Memories in Orbit

Full game guide from start to 100% completion

Main Story: 12-15 hours
100%: 20-25 hours

Early Game (0-3 hours)

Starting Area - Dwellings

  1. Tutorial section teaches basic movement and combat
  2. Explore right side first to collect Nacre and learn environment interactions
  3. Find first Network Gate to install modifiers
  4. Obtain Hairpin Grapple from Strange Tube
  5. Boss: Egis (Silo Access Badge reward)
  6. Unlock Silo access - opens path to Feral Undergrowth

Feral Undergrowth Exploration

  1. Pastel biome with mechanical bugs and birds
  2. Climb to top area, enter left wall hole
  3. Boss: Crow (Harvester ability reward)
  4. Continue exploring lower areas
  5. Boss: Flora (Aviaries Passepartout reward) - essential for progression
  6. Use Passepartout to access Aviaries

Aviaries - First Major Ability

  1. Navigate through bird-themed area
  2. Find Strange Tube containing Dodge ability
  3. Dodge unlocks: invincibility frames and new combat options
  4. Return to Dwellings for ACAT boss (optional but recommended for skill building)

Mid Game (3-8 hours)

Bell Tower & Glide Ability

  1. Access Bell Tower from Dwellings/Haven
  2. Climb to top using Hairpin grapples
  3. Strange Tube reward: Sail (Glide) ability
  4. Essential for crossing large gaps and certain boss fights

Foundations Exploration

  1. Multi-path area connecting several biomes
  2. Boss: Calderon (interact with fake container to fall in)
  3. Boss: Atmos (jump into windy hole by elevator) - use Sail ability
  4. This area is frequently revisited

Haven - Story Progression

  1. Accessible after Flora boss
  2. Meet key NPCs for lore
  3. Boss: Nabuu (The Breath reward) - complex three-phase fight
  4. Optional: Find Flowing Steps ability in hidden Strange Tube

Severed Spine - Map Unlocking

  1. Find Shii the NPC
  2. Give Nacre to unlock map viewing through Shii
  3. Give more Nacre to unlock map access anywhere
  4. Essential quality-of-life upgrade

The Vaults & Late Abilities

  1. Access requires multiple previous abilities
  2. Boss: SAWLONG (first encounter) - escape sequence
  3. Boss: Ancile and Targa
  4. Find Slingshot Punch ability for breaking barriers
  5. Boss: Sol and Vin - major difficulty spike

Late Game (8-12 hours)

Metropolis

  1. Urban-themed area with vertical design
  2. Boss: Friends (wall-climbing fight)
  3. Collect coating upgrades

Lab

  1. Story-heavy area
  2. Boss: Anra & Dr Halyn (two-phase fight)
  3. Key narrative revelations

Redacted

  1. Mysterious area with unique mechanics
  2. Boss: Vlad (circular arena)
  3. Afterimage modifier in plain sight

Crucible

  1. Late-game challenge area
  2. Boss: Debby (disappearing floor)
  3. High-tier modifiers available

Promenade

  1. Final area before endgame
  2. Boss: Sol and Vin if not fought earlier
  3. Prepare for final boss

Nexus - Endgame

  1. Central hub area
  2. Collect all four Pearl fragments: The Blood, The Eye, The Breath, The Hand
  3. Boss: The Keeper of the Heart (final boss)
  4. Equip best modifiers: Protective Overlay, Sharpened Hairpin, Energy Leecher

Post-Game (12-25 hours)

True Ending Requirements

  1. Defeat Keeper of the Heart with all four Pearl fragments
  2. Unlocks True Ending Boss fight
  3. Additional narrative conclusion

Secret Ending Requirements

  1. Find all 12 Candles hidden throughout The Vessel
  2. Talk to Shard of The Eye
  3. Receive Defective Core modifier
  4. Unlock Secret Ending Boss (post-credits)

100% Completion Checklist

  • All 42 Modifiers collected
  • All 19 Bosses defeated
  • All Coating Components found (maximum health)
  • All Old Cores collected
  • All 12 Candles discovered
  • All abilities unlocked (including optional)
  • Map 100% revealed
  • All NPCs rescued (Mel's Minions: SIN, COS, TAN)