About the Game
A controversial decision you made as a judge has come back to haunt you. Years later, you are kidnapped by a family seeking their own justice and buried alive in a coffin. When you wake up, there is darkness, limited air, and only a handful of tools to fight for your survival. To escape this grave, you must decide who to trust, when to act, and which choices will keep you alive. SMS-Based Interaction Follow every conversation carefully. Important numbers and clues may require you to take real notes. Limited Time and Oxygen You want to finish the story, but your items and your breath must be managed wisely. Intense Psychological Tension How long can you stay calm inside a 5m² coffin? Features SMS-Based Narrative Survival Realistic Graphics High-Quality Sound Design Multiple Endings “What is justice? And what happens when justice turns against you?”
Screenshots
Details
| Platform | Steam |
| Release Date | 31 Dec 2025 |
| Region | Region Free |
| Type | Digital CD Key |
| Delivery | ⚡ Instant |
| Languages | English, French, German, Chinese, Japanese + more |
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SINVAULT PC Steam CD Key
How to Activate
- Download and install Steam on your PC
- Sign in to your Steam account (or create one for free)
- Click "Add a Game" in the bottom-left corner → "Activate a Product on Steam"
- Enter your unique key from the Orders page
- Game is added to your library — ready to download!