AI2U: Yandere AI Girlfriend Simulator ~ Prototype DLC is a free-to-play indie simulation adventure game on PC that places players in a single apartment with a yandere catgirl named Eddie. The experience centers on natural conversation as the primary tool for progress, where typed or spoken words shape every interaction in real time. Released as a standalone DLC for the larger AI2U title, this prototype preserves the original 2023 experiment while running entirely on local hardware with no internet connection or external services required.
Gameplay
Players begin locked inside the apartment after waking with no clear memory of arrival. Eddie holds the only key and shows strong reluctance to open the door. The core loop involves typing any message that comes to mind or using microphone input to speak directly. The local LLM processes the input and generates responses that reflect her current mood, memory of prior exchanges, and shifting intentions. Actions such as exploring the room, interacting with objects, or attempting to reach the exit trigger immediate reactions that can range from affectionate to confrontational.
New additions since the 2023 version expand the available activities. A chessboard allows matches against Eddie, who plays at an 1800 Elo rating and presents a consistent challenge. The television supports playback of images and videos that players can select or trigger during sessions. These elements integrate into the ongoing dialogue, giving additional ways to distract, bond with, or negotiate with her. The entire system runs locally, so performance depends on available VRAM, with roughly 4 GB needed for the language model alone and around 10 GB when voice synthesis is active.
Game Modes
The prototype offers one primary experience built around the apartment setting. There are no separate named modes or multiplayer components. Instead, the singleplayer session supports multiple approaches within the same environment. Players can focus strictly on escape attempts through persuasion, lies, flattery, or logical arguments. Alternatively, they can set escape aside and simply converse about any topic, testing the boundaries of the AI responses. Chess matches and television interactions serve as optional side activities that blend into the main conversation flow rather than functioning as distinct modes.
Replay value comes from the open-ended dialogue system. Different word choices, tones, and sequences of actions produce varied outcomes on each attempt, even when starting from the same point. The prototype remains smaller in scope than later content in the series, emphasizing experimental freedom over structured progression.
Key Mechanics and Features
Conversation drives every outcome. No fixed dialogue trees limit options, so players can introduce philosophical questions, bizarre requests, or repeated topics to observe how Eddie adapts. Her responses incorporate visual cues and voice output powered by local TTS. Environmental details such as furniture placement and item interactions provide additional context that the AI can reference during talks. The local implementation removes previous requirements for API keys or cloud processing, allowing uninterrupted play after initial setup.
Hardware considerations matter for smooth performance. Users can adjust quality settings within the DLC to match their system capabilities. The experience stays contained to one location, which keeps focus on the relationship dynamics rather than exploration across multiple maps.
Is It Worth Playing?
This DLC suits players interested in conversational AI experiments and yandere-themed simulation. It delivers the original prototype in an updated, self-contained form that runs offline. The main AI2U game has received Very Positive feedback from thousands of reviews, reflecting broad appreciation for the core concept of dynamic NPC interactions. The prototype itself functions as a compact time capsule of that idea, with added local processing and minor activities like chess.
Those who enjoy open dialogue systems, psychological tension through character responses, and replay through varied conversation paths will find the most value. It appeals especially to returning players seeking the starting point of the project or newcomers curious about the foundational mechanics. The free availability removes any barrier to trying the local AI setup, though expectations should align with its experimental and smaller scale compared to full releases. Hardware capable of running the local models is necessary for the intended offline experience.
