Full game metadata
| Field | Value |
|---|---|
| Steam app type | game |
| Steam App ID | 3569450 |
| Live current players | 0 |
| SteamPulse tracked peak | 0 |
| Live count (today's peak floor) | 0 |
| Price | No longer available on Steam Store |
| Free to play | No current Steam offer |
| Discount | Not available |
| Original price USD | Not available |
| Current price USD | Not available |
| Release date | To be announced |
| Developer | Luna Niermann |
| Publisher | Not Final Games |
| Owners estimated | Not available |
| SteamSpy owner estimate minimum | Not available |
| SteamSpy owner estimate maximum | Not available |
| Review type | No user reviews |
| Positive review percent | Not available |
| Positive reviews | 0 |
| Negative reviews | 0 |
| Total reviews | 0 |
| Steam recommendations | Not available |
| Achievements | Not available |
| Average playtime forever | Not available |
| Windows support | Yes |
| macOS support | No |
| Linux support | No |
| Parent game | Not available |
| Store URL | Not available on Steam Store |
Short description
Can you escape the tunnels? An AI-powered buddy is following you as you discover the seemingly never-ending network of tunnels. Get ready for a personalized and unique experience at The Hollow Line.
About this game
Roadmap Click on the Discord link on the right to be the first to learn about new features. Your input is super valuable to us and we would hate to miss it! See you on Discord! 💙 About the Game 🔊 "End of the line. Please exit the train." Experience a unique and personalized horror experience thanks to artificial intelligence. An abandoned metro. A shifting labyrinth. A voice that knows your name. You wake up alone in an infinite underground network , with no memory of how you got there. The tunnels whisper, the walls move when you're not looking, and something unseen is watching. But you are not truly alone—there are others here. Or at least, there were. 🚇 Will you reach the surface? Or will you become just another missing passenger? Key features AI-Driven Storytelling – The game adapts to your choices, creating a horror experience that is uniquely yours. Your Journey, Your Choices – How you interact with others determines your path. Will you find the way out, or uncover something far more unsettling? Immersive Voice Interaction – Speak directly into your microphone to communicate with in-game characters—no typing required. (Text-based options are also available.) Full Localization – Enjoy the experience in your preferred language, with localized text, audio, and UI . Compatibility disclaimer LLMs (Large Language Models) in games are still new. These require a lot of computing power and cannot run on certain devices. Please keep the system requirements in mind. We aim to provide an optimized experience for any (supported) individual setup. 🛑 Next Stop: The Hollow Line. Wishlist now.
Supported languages
English * , French * , German * , Spanish - Spain * , Dutch * , Spanish - Latin America * , Turkish * , Portuguese - Brazil * * languages with full audio support