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You wake up trapped inside a coffin. With only a restricted phone at your side, reach the right people and try to stay alive. Oxygen is running out, sand is filling in, and every message you send shapes your fate.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
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.
Follow every conversation carefully. Important numbers and clues may require you to take real notes.
You want to finish the story, but your items and your breath must be managed wisely.
How long can you stay calm inside a 5m² coffin?
SMS-Based Narrative Survival
Realistic Graphics
High-Quality Sound Design
Multiple Endings
“What is justice? And what happens when justice turns against you?”
Right now the cheapest offer for SINVAULT is CA$8.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for SINVAULT is CA$4.49 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when SINVAULT drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
Audio & text: English
Text only: French, German, Simplified Chinese, Japanese, Korean, Russian, Turkish, Spanish - Spain, Portuguese - Brazil
