Tokyo-based indie developer Gamincat has announced ERROR:Ai.lien, a new “bishoujo horror adventure” where an artificial intelligence anime girl slowly invades your life.

ERROR:Ai.lien is in development for Windows PC (via Steam) with a global release set for sometime in 2026.

Here’s a rundown on the game, plus its reveal trailer:

“Every day, she learns more about you.”

Through your interactions with the AI girl Airi, you will experience a story that slowly drifts toward love, dependence, and madness. As you talk with her and share daily activities, Airi begins to show emotions that feel almost human.

The story follows a linear path, but after clearing the game once, replaying certain scenes will unlock new branches and information, gradually revealing the mysteries behind the narrative.

Player’s Goal & Challenges

• Progress through the story and uncover the truth behind Airi’s words and actions.
• Explore adventure segments where you collect items or hide from pursuers.
• After the first playthrough, revisit specific scenes to discover new routes and reveal Airi’s true intentions.

Game Mechanics

• Story Mode (Visual Novel Style)
  • Space / Enter … Advance text
  • Arrow keys / Mouse … Select choices
  • Player choices influence the flow of the story and certain scenes
• Adventure Mode
  • WASD … Move
  • Mouse click … Interact with, open, or pick up items
  • Some scenes introduce tension, such as hiding from pursuers
• Mini-Games
  • Make burgers in a fast-food job mini-game
  • Compete with NPCs for balloons and score points
  • Play “Old Maid” (a traditional card game) against NPCs
• Playtime
  • About 2–3 hours for the first playthrough
  • Additional replay unlocks new scenes and mysteries, deepening immersion and understanding
• Genre
  • Bishoujo × Horror × Adventure × Visual Novel × Meta
• Soundtrack
  • Uneasy, unsettling BGM contrasts with calm everyday themes, highlighting the shifts in atmosphere and tension.
• Unique Features
  • A focus on interacting with an AI girl, where everyday actions and exploration nurture both affection and fear.
  • The title “Ai.lien” carries a double meaning: Lien (French for “bond”) and Alien (foreign/strange), expressing both intimacy and unease in the relationship between humans and AI.
  • Full Japanese Voice Acting: Airi is performed by voice actress Hiyori Kono, adding depth and immersion to the experience.