| App ID | 2774150 |
| App Type | Game |
| Developer | 非稳态物质-Unstable Matter |
| Publisher | 非稳态物质-Unstable Matter |
| Supported Systems | Windows |
| Technologies | Unity Engine |
| Last Changenumber | 30513199 |
| Last Record Update | 10 August 2025 – 07:40:48 UTC ( |
| Release Date | 29 March 2024 – 03:31:48 UTC ( |
The game will center around two investigators who uncover a profound terror while delving into consecutive disappearances. A man with a dual-layered memory, a fragmented reality, an endless rainy night... What in the world is the Black Stone? Could it possibly mark the genesis of everything?
Steam price history
Current Price
$4.99
Lowest Recorded Price
$2.99 at -40%
31 October 2024
| Currency | Current Price | Converted Price | Lowest Recorded Price | ||
|---|---|---|---|---|---|
 U.S. Dollar |
$4.99 | $4.99 | $2.99 | $2.99 at -40% | |
 Russian Ruble |
200 ₽ | $2.48 | -50.12% | $1.49 | 120 ₽ at -40% |
 Kazakhstani Tenge |
1500₸ | $2.78 | -44.23% | $1.66 | 900₸ at -40% |
 Vietnamese Dong |
73500₫ | $2.79 | -44.09% | $1.67 | 44000₫ at -40% |
 Indian Rupee |
₹ 250 | $2.85 | -42.80% | $1.71 | ₹ 150 at -40% |
 Indonesian Rupiah |
Rp 47499 | $2.90 | -41.84% | $1.74 | Rp 28499 at -40% |
 South African Rand |
R 52.00 | $2.94 | -41.05% | $1.76 | R 31.20 at -40% |
 LATAM - U.S. Dollar |
$2.99 | $2.99 | -40.08% | $1.79 | $1.79 at -40% |
 MENA - U.S. Dollar |
$2.99 | $2.99 | -40.08% | $1.79 | $1.79 at -40% |
 South Asia - USD |
$2.99 | $2.99 | -40.08% | $1.79 | $1.79 at -40% |
 Ukrainian Hryvnia |
124₴ | $3.00 | -39.82% | $1.79 | 74₴ at -40% |
 Philippine Peso |
₱174.95 | $3.06 | -38.61% | $1.83 | ₱104.97 at -40% |
 Chinese Yuan |
¥ 22 | $3.07 | -38.34% | $1.84 | ¥ 13.20 at -40% |
 Chilean Peso |
CLP$ 3000 | $3.09 | -37.94% | $1.85 | CLP$ 1800 at -40% |
 Brazilian Real |
R$ 16,99 | $3.13 | -37.16% | $1.88 | R$ 10,19 at -40% |
 Saudi Riyal |
11.95 SR | $3.18 | -36.18% | $1.91 | 7.17 SR at -40% |
 CIS - U.S. Dollar |
$3.29 | $3.29 | -34.07% | $1.97 | $1.97 at -40% |
 Malaysian Ringgit |
RM13.99 | $3.30 | -33.68% | $1.98 | RM8.39 at -40% |
 Taiwan Dollar |
NT$ 102 | $3.34 | -33.03% | $1.99 | NT$ 61 at -40% |
 Colombian Peso |
COL$ 13500 | $3.34 | -32.92% | $2.00 | COL$ 8100 at -40% |
 Peruvian Sol |
S/.12.00 | $3.38 | -32.21% | $2.02 | S/.7.20 at -40% |
 Mexican Peso |
Mex$ 64.49 | $3.46 | -30.66% | $2.07 | Mex$ 38.69 at -40% |
 Thai Baht |
฿115.00 | $3.54 | -28.90% | $2.12 | ฿69.00 at -40% |
 Qatari Riyal |
12.99 QR | $3.56 | -28.52% | $2.13 | 7.79 QR at -40% |
 Kuwaiti Dinar |
1.10 KD | $3.60 | -27.85% | $2.16 | 0.66 KD at -40% |
 Japanese Yen |
¥ 580 | $3.94 | -20.98% | $2.36 | ¥ 348 at -40% |
 Uruguayan Peso |
$U159 | $3.97 | -20.38% | $2.37 | $U95 at -40% |
 South Korean Won |
₩ 5600 | $4.03 | -19.12% | $2.42 | ₩ 3360 at -40% |
 U.A.E. Dirham |
15.00 AED | $4.08 | -18.15% | $2.45 | 9.00 AED at -40% |
 Singapore Dollar |
S$5.25 | $4.08 | -18.15% | $2.45 | S$3.15 at -40% |
 Hong Kong Dollar |
HK$ 33.00 | $4.23 | -15.12% | $2.54 | HK$ 19.80 at -40% |
 New Zealand Dollar |
NZ$ 7.39 | $4.33 | -13.15% | $2.59 | NZ$ 4.43 at -40% |
 Canadian Dollar |
CDN$ 6.49 | $4.71 | -5.60% | $2.82 | CDN$ 3.89 at -40% |
 Costa Rican Colon |
₡2400 | $4.76 | -4.44% | $2.86 | ₡1440 at -40% |
 Australian Dollar |
A$ 7.50 | $4.88 | -2.09% | $2.93 | A$ 4.50 at -40% |
 Norwegian Krone |
55,49 kr | $5.50 | +10.40% | $3.30 | 33,29 kr at -40% |
 Israeli New Shekel |
₪18.50 | $5.55 | +11.36% | $3.33 | ₪11.10 at -40% |
 British Pound |
£4.29 | $5.79 | +16.13% | $3.47 | £2.57 at -40% |
 Euro |
4,99€ | $5.80 | +16.43% | $3.48 | 2,99€ at -40% |
 Polish Zloty |
22,99zł | $6.27 | +25.77% | $3.76 | 13,79zł at -40% |
 Swiss Franc |
CHF 5.49 | $6.85 | +37.29% | $4.10 | CHF 3.29 at -40% |
Valve suggested prices are shown on package pages.
Price history
Initializing price history graph…
Price history is limited. View full data for free by signing in.
Click on a currency name to load price history for that particular currency.
Additional Information
| Developer | 非稳态物质-Unstable Matter | |||||||||||||||||
| community_visible_stats | Yes | |||||||||||||||||
| ReleaseState | released | |||||||||||||||||
| Publisher | 非稳态物质-Unstable Matter | |||||||||||||||||
| Store Release Date | 29 March 2024 – 03:31:51 UTC ( |
|||||||||||||||||
| osarch | empty string | |||||||||||||||||
| community_hub_visible | Yes | |||||||||||||||||
| Social Media | https://space.bilibili.com/442876378 https://weibo.com/u/7242984074 |
|||||||||||||||||
| Primary Genre | Indie (23) | |||||||||||||||||
| Store Genres | Casual (4), Indie (23) | |||||||||||||||||
| Steam Release Date | 29 March 2024 – 03:31:48 UTC ( |
|||||||||||||||||
| Store Asset Modification Time | 17 April 2025 – 09:33:43 UTC ( |
|||||||||||||||||
| library_assets |
|
|||||||||||||||||
| osextended | empty string | |||||||||||||||||
| review_score | 7 | |||||||||||||||||
| review_percentage | 81 | |||||||||||||||||
| Detected Technologies (?) | Unity Engine, Protocol_Buffers SDK, SteamworksNET SDK, UnityBurst SDK, cURL SDK | |||||||||||||||||
| controllertagwizard | Yes | |||||||||||||||||
| First seen on SteamDB | 8 January 2024 – 02:52:37 UTC ( |
|||||||||||||||||
Supported Languages
| 2 Languages | Interface | Full Audio | Subtitles | Achievements |
|---|---|---|---|---|
| Simplified Chinese | Yes | Yes | Yes | Yes |
| English | Yes | Yes | Yes | Yes |
Assets
Load all asset images| clienticon | 65cf6fc2c24e175b72d44fe654c5435d62e708b1 | ||||||||||||||||||||||||||||||
| clienttga | 195cbdac41a53617804bbf123b762ced7d5c17b7 | ||||||||||||||||||||||||||||||
| icon | 010a546cecd64f90a0b7482752d996c168bcea39 | ||||||||||||||||||||||||||||||
| small_capsule |
|
||||||||||||||||||||||||||||||
| header_image |
|
||||||||||||||||||||||||||||||
| library_assets_full |
|
||||||||||||||||||||||||||||||
| Assets |
|
||||||||||||||||||||||||||||||
| Trailers |
|
||||||||||||||||||||||||||||||
