Open now · By request
Unknown: Site-0 playtest
by GoWelkin Network
"Unknown: Site-0" is a turn-based card game. Site-0 is an underground containment facility. During a sudden breach, numerous highly dangerous anomalies escaped control. You play as an investigator, exploring the unknown, evading or confronting incomprehensible entities, and seeking the truth.
It's free to ask. The developer chooses who gets in.
- Access
- By request
- Planned release
- Coming soon
- Developer
- GoWelkin Network
- Platforms
- Windows
- Players
- Single-player
- Languages
- English, Simplified Chinese, Traditional Chinese
How to join the Unknown: Site-0 playtest
- Open the game's Steam page with the Request access button. Sign in to Steam if it asks.
- Request access to the Unknown: Site-0 playtest there. It's free and doesn't commit you to anything.
- The developer lets players in, often in batches, so it can take a while. Steam emails you when you're in, and the playtest appears in your library.
New to playtests? How Steam playtests work
How AI is used
Due to the fact that the artist we collaborated with left abruptly, and we no longer have sufficient funds to recruit new artists or purchase art resources, and we also do not have dedicated art staff internally, we have, under these circumstances, used AI to optimize and create derivative works from the character illustrations we already possess, so that they can be used in other scenarios. We hold the relevant legal rights to these original assets. In the process of using AI for creation, we will take measures such as manual review to avoid, as much as possible, AI-generated content infringing on the rights of third parties. We will also make necessary manual modifications to and screening of AI-generated content to ensure that the final art resources used meet our needs. Currently, we have used AI in the creation of related art resources for character illustrations, store promotional images, and some CG scenes in the story.
The developer's own words, from Steam.
About Unknown: Site-0
Game Introduction & Background Setting
"Unknown: Site-0" is a turn-based card game.
Humanity's abuse of material-energy conversion technology shattered the balance between reality and the Void. The Void began to merge with reality, and monsters descended. The "Void Sickness" they brought ravaged the world, leading to the destruction of civilization.
To fight back against these entities and find a cure for Void Sickness, we established the "Bureau for Special Existence and Anomalous Affairs" (SEAA). We perish in the darkness so that humanity may live in the sunlight.
You will play as an investigator, venturing deep into the underground facility where the containment breach occurred — Site-0. During the sudden breach, a large number of extremely dangerous anomalies escaped control.
With the assistance of P.A.T.S (Primitive Autonomic Terminal Service), explore the unknown, evade or confront those entities beyond human comprehension, and uncover the cause of the incident...
Every choice you make may lead to the truth — or to death.
Game Development Team
Game Programmer: 3cxc
Game Writer: Ahas
Production Supervisor & Scene Modeling: GGBOY
Traditional Chinese Translator & Story Contributor: Mokou
Game Testing Team: sahuang, Bustling
Special Thanks: 潜水可耻但有用 (Character Art), ESCmaka, moimeji
From the game's Steam page.





