The Return of Illunes

The world's first offline TRPG with a built-in AI Game Master trained specifically for this game — it tells the story, judges your actions, and creates subclasses, skills, gear, relics and bosses right on your device. No internet connection or AI subscription required.

Build Your Party. Shape Your Run. Write Your Next Move.

The Return of Illunes is a turn-based roguelike RPG with a small language model built into the game. Lead a party of up to four through a branching dungeon, combine classes, skills and relics, and bring what you earn back to strengthen your next expedition.

The AI runs locally on your PC. It generates content during play without an AI server connection, subscription or per-use fee.

A New Build to Discover

Choose your route through battles, shops, rest stops and encounters. Experiment with skill and equipment combinations, weigh rewards against danger, and prepare your party for the bosses ahead.

• Party tactics — Build around four base classes, their subclasses and AI-generated subclasses.
• Run-changing combinations — Combine skills, gear and relics with synergies, oaths and world mutations.
• Progress beyond a single run — Invest in permanent upgrades, unlock classes and grow your base between expeditions.
  

Put Your Idea into Words

Use Free Action to describe an attack or an attempt to help your party. The AI responds with a verdict and narration, while the game resolves successful combat actions through its attack or healing effects. Try your own wording alongside the regular battle commands.

What the AI Creates — No Two Runs Alike

• Subclasses — brand-new specializations invented on the spot: name, description, stat spread, growth curve and skill leanings (within balance limits)
• Skills — new techniques with their own name, form, element, power, status effects and special mechanics
• Gear & Relics — unique names and lore, and which powers they carry
• Bosses — entrance scenes, battle gimmicks and signature skills
• Enemy techniques — enemy skills that change from fight to fight
• The run's story — each expedition's premise, goal, threat and tone
• Adventure events — scenes, choices and their outcomes
• Free actions — type anything; the AI Game Master judges success or failure and narrates the result
• Battle narration — round summaries and victory/defeat scenes
• Synergies, Oaths & World Mutations — rules that reshape your run, and their stories
• Shops — shop descriptions, merchant dialogue and AI-named wares
• Cooking — dishes and effects born from your ingredient combinations
• Companions — conversations and battle cries full of personality
• Endings — an epilogue and final words written for your run alone
  

An AI Inside Your Adventure

Discover AI-generated skills, subclasses, equipment descriptions, enemy techniques and story text alongside the game's prepared content. The built-in model adds names, flavor and variations to your journey through Paradise.

Play at your own pace. Adjust AI content density, or turn generation off to use prepared content. Story generation can be cancelled to continue with prepared text. Generation time depends on your hardware; AI narration may sometimes be imperfect.

Descend into Paradise

In Zeta, a world of magic and machines, the Illunes sect concealed the world's secrets in a place called Paradise. Bound by a covenant with Ethelin, the last of the Illunes, you follow the trail of nine discoverers consumed by desire. What will you bring back from the depths?

Local AI. One Purchase.

• A small language model is included with the game and runs on your PC.
• AI generation works offline after installation. No AI subscription, API key or token charges are required.
• AI-generated text supports Korean, English, Japanese, Chinese (Simplified and Traditional), Russian, German and French. Other interface languages use English AI text.
  

HyperCLOVA X SEED Model is licensed under the HyperCLOVA X SEED Model License Agreement, Copyright © NAVER Corp.

*"World's first" is based on our own research of publicly available information as of October 9, 2026.