Planned Release Date: Jan 14, 2027

About This Game

Alone, a three-day nightmare. Together, the Side Story.

CHU holds two nightmares: a single-player story about surviving three days in the barracks, and the Side Story, an online co-op horror for up to 4 players.

Story — A peaceful life in the barracks… by day.

Reveille. You open your eyes in Barracks 5. Fold your blankets, change into uniform, and run so you're not late for roll call. Clear the snow that fell overnight, eat in the mess hall, sweat it out in the gym. And somehow, Chu Jinho is always right beside you, doing something absurd.

22:00, lights out. Everyone is asleep, but one bed is empty. 02:22. He is awake. At night there is no guide and no senior to help you. Use what you heard during the day as clues: hide, crawl, and find what you need. If he spots you, run.

Side Story — Find the missing Chu Jinho (online co-op, 1–4 players)

Chu Jinho is gone. Follow the notes he left behind and step into strange places with your squadmates. Every chapter has its own place, its own rule and its own monster. Split up to search, solve the puzzle, survive the chase, and get out together.

• Ch. 1 The Silent Monastery — never run or shout near a praying nun
  
• Ch. 2 The Ryokan in the Rain — make sure the shadow behind the paper screen really is your friend's
  
• Ch. 3 The Bunker of All Fears — read the situation board, remember the password, avoid the doll family
  
• Ch. 4 The Collapsing Tunnel — kill your light and hold your breath, then run the caving shaft to the exit

Scream into your mic and they hear it. Get caught and you'll watch it to the end. No friends online? Empty slots are filled by AI squadmates.

Features

• Two ways to play: the single-player story + a 1–4 player online co-op Side Story (Steam friend invites and public rooms)
  
• Side Story: 4 chapters, each with a new place and monster, told through cutscenes
  
• Proximity voice chat and text chat: hear your squadmates by where they stand — and if you are loud, the monsters hear you too (mic and voice chat can be turned off in Settings)
  
• Story: three days of alternating day and night, a tragicomic army routine by day, stealth and chases by night
  
• An entire base to explore: barracks, parade ground, mess hall, PX, shooting range, and the guardhouse
  
• What you hear during the day becomes your plan for the night. Just don't assume it's always true
  
• Snow clearing, rifle range, futsal, PT, and MILES laser-tag drills: routines anyone who served will smirk at
  
• Dialogue choices, a Morse code radio, a field switchboard, a locked filing cabinet
  
• Three difficulty levels (Easy / Normal / Nightmare), multiple endings, and chapter select
  
• Story mode fully voiced with subtitles in Korean, English, and Japanese · Steam Achievements, leaderboards, and a photo mode

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

All AI use happened during development; no AI content is generated while you play.
- Voices: the spoken dialogue in Korean, English and Japanese was made with AI speech synthesis. Most voices were designed from text descriptions; Chu Jinho's voice is an AI voice based on a real voice recording.
- Faces: most characters' face textures are portraits of non-existent people made with an AI image model, fitted to the 3D models by the developer.
- Music and sound: the background music and some sound effects were created with AI music and sound-effect tools, then edited by the developer.
- Text: parts of the in-game text, the English and Japanese translations, the store page text and the scripts used to build the 3D models were written with the help of an AI assistant, then reviewed and edited by the developer.

Mature Content Description

The developers describe the content like this:

A horror game. It has dark settings, jump scares, and scenes where a ghost or a frightening character chases you (when you are caught the screen cuts to black; there is no blood or gore). On the evening of Day 3 a cutscene shows a senior soldier beating a junior soldier in the barracks: the victim is kicked while he is down and grabbed by the collar, and a bruise appears on his face. There is no blood or dismemberment, and afterwards the player chooses how to respond to the incident. Other mild violence: comedic punching, target shooting at a rifle range, and laser-tag style mock combat training.