Overview
A dungeon‑crawler crossover of Pokémon, Made in Abyss, and Etrian Odyssey. Explore the deadly Yggdrasil Labyrinth on Talrega Island in a story‑driven roguelike adventure.
Game Details
Developers: PacoScarso
Base Game: FireRed
Base Game Version: 1636 - Pokémon Fire Red (U)(Squirrels)
Platforms: GBA
Game Info
Release Date: November 10, 2024
Updated: July 12, 2025
Playtime: 20+ hours
Status: Completed
Version: 4.1
Storyline
On an island in the middle of the sea stands a massive maze known as the "Yggdrasil Labyrinth", which has been attracting adventurers from all over the world for years. No one knows how deep it goes, or if there's anything at its end. Some say there's a treasure of immeasurable value hidden within, while others claim the remnants of a lost civilization lie there. In the game you'll play as Nyx, a young adventurer who joins the guild of Talrega with the goal of unraveling the Labyrinth's mysteries. But something goes terribly wrong…
Trailer
Features
New story & region: Yggdrasil Labyrinth
All double battles
Rebalanced Pokémon: 31 IVs, no EV gain
New Neural/Aether-type & 20+ custom moves
Etrian-inspired mechanics: mining, FOEs, naval exploration
Sidequests menu and Wonder Trade
Three difficulty modes: Picnic, Normal, Hard
Gen VI‑style Exp. Share, EV/IV screens, nature/ability edits
Automatic running, infinite TMs, reworked UI
New soundtrack and quality‑of‑life improvements
Difficulty Settings
Changelogs
4.0.3
Released: 7/5/2025
- Fixed a crash Issue during an event with Olympia in the 4th Stratum;
- Fixed an Issue with Expert Belt's chest on Faraway Island
4.0.2
Released: 7/2/2025
- Fixed dialogue issues
- Fixed random freeze instances and glitches after trainer battles
- Removed the Friendship-increasing berry shop from the guild; added a new NPC who maxes friendship
- Fixed a Dex registration bug for Leafeon, Glaceon, and Yggdreon (requires re-evolution)
- Added 'Lullaby' to the sound-based move list
- Added 'Expert Belt' to Faraway Island
- Enabled Dex registration for previously unobtainable Pokémon:
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- B.B. Mawile & B.B. Kecleon: Read Silva's notes in Etria lab (postgame)
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- Lords of the Sea: Read Napier's notes in Aqua Resort shop
- Jigglypuff & Wigglytuff now learn Rotten Egg at level 10 and Lullaby at level 30
- Renamed key item 'Quest Log' to 'Story Log'
- Buffed Mawile: HP 60 → 80, Speed 50 → 60, added Shift Gear to learnset
- Rebalanced Camerupt: HP 80 → 90, Atk 100 → 80, Speed 50 → 60
- Nerfed Slaking: HP 150 → 140, Atk 140 → 120, Def 100 → 90
- Nerfed 'Call: Allies' move power: 70 → 50
- Spearow and Fearow now have Rock Head instead of Defiant
- New sprites for Spearow, Fearow, and Feraligatr (credits: @Lodestar195)
4.0.1
Released: 6/15/2025
- Fixed some dialogues
- Fixed some movement permissions
- Fixed a bug regarding the Lavender Town ghost encounter in the 8th Stratum
- Fixed an issue in Jagged Mountain
- Fixed an issue with the Dex not showing the wild mons in the Sandy Caves
- Fixed an issue that was preventing Vulpix from appearing in the wonder trade
- Fixed an issue with Octazooka and Needle Arm's priority
- Fixed an issue with Call: Owl's effect
- Removed the double confirmation from MementoVitae
Screenshots
Additional Resources
Explore More
View Cheats for Pokémon OdysseyOfficial Sources
Official PokéCommunity thread for Beta 3.5.4Official DiscordReddit announcement v3.5All ROM hacks featured here are credited to their original creators. If you are a creator and wish to update, add, or remove your content, please contact us.
Main Developers
PacoScarso
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