HAL Protocol
| App ID | 3726440 |
| App Type | Game |
| Developer | The Last Semicolon Dev |
| Publisher | The Last Semicolon Dev |
| Supported Systems | Windows |
| Technologies | Unity Engine |
| Last Changenumber | 29901938 |
| Last Record Update | 4 July 2025 – 17:12:33 UTC ( |
| Release Date | 23 June 2025 – 17:25:50 UTC ( |
Your shift aboard the HIS 01 Echo is finally over. The return shuttle awaits you in Compartment 9. All that's left is to walk there. But the corridor to Compartment 9 loops endlessly. Each time, something shifts. Uncover the mystery. Escape the impossible.
Steam price history
Current Price
$4.99
Lowest Recorded Price
$4.99
23 June 2025
| Currency | Current Price | Converted Price | Lowest Recorded Price | ||
|---|---|---|---|---|---|
 U.S. Dollar |
$4.99 | $4.99 | $4.99 | $4.99 | |
 Russian Ruble |
200 ₽ | $2.50 | -49.87% | $2.50 | 200 ₽ |
 Vietnamese Dong |
73500₫ | $2.79 | -44.06% | $2.79 | 73500₫ |
 Indian Rupee |
₹ 250 | $2.82 | -43.44% | $2.82 | ₹ 250 |
 Kazakhstani Tenge |
1500₸ | $2.82 | -43.35% | $2.82 | 1500₸ |
 Indonesian Rupiah |
Rp 47499 | $2.90 | -41.76% | $2.90 | Rp 47499 |
 Ukrainian Hryvnia |
124₴ | $2.95 | -40.82% | $2.95 | 124₴ |
 Philippine Peso |
₱174.95 | $2.97 | -40.32% | $2.97 | ₱174.95 |
 LATAM - U.S. Dollar |
$2.99 | $2.99 | -40.08% | $2.99 | $2.99 |
 MENA - U.S. Dollar |
$2.99 | $2.99 | -40.08% | $2.99 | $2.99 |
 South Asia - USD |
$2.99 | $2.99 | -40.08% | $2.99 | $2.99 |
 South African Rand |
R 52.00 | $3.01 | -39.67% | $3.01 | R 52.00 |
 Chinese Yuan |
¥ 22 | $3.09 | -38.00% | $3.09 | ¥ 22 |
 Brazilian Real |
R$ 16,99 | $3.15 | -36.75% | $3.15 | R$ 16,99 |
 Chilean Peso |
CLP$ 3000 | $3.18 | -36.21% | $3.18 | CLP$ 3000 |
 Saudi Riyal |
11.95 SR | $3.18 | -36.14% | $3.18 | 11.95 SR |
 CIS - U.S. Dollar |
$3.29 | $3.29 | -34.07% | $3.29 | $3.29 |
 Taiwan Dollar |
NT$ 102 | $3.31 | -33.50% | $3.31 | NT$ 102 |
 Malaysian Ringgit |
RM13.99 | $3.33 | -33.13% | $3.33 | RM13.99 |
 Colombian Peso |
COL$ 13500 | $3.47 | -30.35% | $3.47 | COL$ 13500 |
 Mexican Peso |
Mex$ 64.49 | $3.47 | -30.27% | $3.47 | Mex$ 64.49 |
 Peruvian Sol |
S/.12.00 | $3.54 | -29.05% | $3.54 | S/.12.00 |
 Thai Baht |
฿115.00 | $3.55 | -28.72% | $3.55 | ฿115.00 |
 Qatari Riyal |
12.99 QR | $3.56 | -28.53% | $3.56 | 12.99 QR |
 Kuwaiti Dinar |
1.10 KD | $3.58 | -28.15% | $3.58 | 1.10 KD |
 Japanese Yen |
¥ 580 | $3.77 | -24.44% | $3.77 | ¥ 580 |
 South Korean Won |
₩ 5600 | $3.91 | -21.48% | $3.91 | ₩ 5600 |
 Uruguayan Peso |
$U159 | $3.98 | -20.11% | $3.98 | $U159 |
 Singapore Dollar |
S$5.25 | $4.04 | -19.04% | $4.04 | S$5.25 |
 U.A.E. Dirham |
15.00 AED | $4.08 | -18.15% | $4.08 | 15.00 AED |
 New Zealand Dollar |
NZ$ 7.39 | $4.23 | -15.07% | $4.23 | NZ$ 7.39 |
 Hong Kong Dollar |
HK$ 33.00 | $4.24 | -14.87% | $4.24 | HK$ 33.00 |
 Canadian Dollar |
CDN$ 6.49 | $4.64 | -7.00% | $4.64 | CDN$ 6.49 |
 Costa Rican Colon |
₡2400 | $4.78 | -4.07% | $4.78 | ₡2400 |
 Australian Dollar |
A$ 7.50 | $4.91 | -1.51% | $4.91 | A$ 7.50 |
 Norwegian Krone |
55,49 kr | $5.51 | +10.53% | $5.51 | 55,49 kr |
 British Pound |
£4.29 | $5.64 | +13.08% | $5.64 | £4.29 |
 Israeli New Shekel |
₪18.50 | $5.68 | +13.89% | $5.68 | ₪18.50 |
 Euro |
4,99€ | $5.77 | +15.68% | $5.77 | 4,99€ |
 Polish Zloty |
22,99zł | $6.26 | +25.59% | $6.26 | 22,99zł |
 Swiss Franc |
CHF 5.49 | $6.84 | +37.23% | $6.84 | CHF 5.49 |
Valve suggested prices are shown on package pages.
Price history
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Tags
Categories
Hardware Categories
Accessibility Categories
Additional Information
| Developer | The Last Semicolon Dev | |||||||||||||||||||
| controller_support | full | |||||||||||||||||||
| community_visible_stats | Yes | |||||||||||||||||||
| ReleaseState | released | |||||||||||||||||||
| Publisher | The Last Semicolon Dev | |||||||||||||||||||
| Store Release Date | 23 June 2025 – 17:25:53 UTC ( |
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| osarch | 64 | |||||||||||||||||||
| community_hub_visible | Yes | |||||||||||||||||||
| Primary Genre | Indie (23) | |||||||||||||||||||
| Store Genres | Indie (23), Simulation (28) | |||||||||||||||||||
| Steam Release Date | 23 June 2025 – 17:25:50 UTC ( |
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| Store Asset Modification Time | 29 May 2025 – 11:42:32 UTC ( |
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| library_assets |
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| osextended | empty string | |||||||||||||||||||
| Detected Technologies (?) | Unity Engine, UnityBurst SDK, UnityIL2CPP SDK | |||||||||||||||||||
| controllertagwizard | Yes | |||||||||||||||||||
| First seen on SteamDB | 6 May 2025 – 10:07:03 UTC ( |
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Supported Languages
| 1 Languages | Interface | Full Audio | Subtitles |
|---|---|---|---|
| English | Yes |
Assets
Load all asset images
| trailer_name | HAL Protocol Trailer |
| trailer_category | 3 |
| trailer_480p ↴ | |
| video/webm | 257136628/movie480_vp9.webm |
| video/mp4 | 257136628/movie480.mp4 |
| trailer_max ↴ | |
| video/webm | 257136628/movie_max_vp9.webm |
| video/mp4 | 257136628/movie_max.mp4 |
| microtrailer ↴ | |
| video/webm | 3726440/753823053/ee8daaeb1ae7ea4ccae1396f15e921d78b5ec0cc/1750394329/microtrailer.webm |
| video/mp4 | 3726440/753823053/ee8daaeb1ae7ea4ccae1396f15e921d78b5ec0cc/1750394329/microtrailer.mp4 |
| adaptive_trailers ↴ | |
| dash_av1 | 3726440/753823053/ee8daaeb1ae7ea4ccae1396f15e921d78b5ec0cc/1750394329/dash_av1.mpd |
| dash_h264 | 3726440/753823053/ee8daaeb1ae7ea4ccae1396f15e921d78b5ec0cc/1750394329/dash_h264.mpd |
| hls_h264 | 3726440/753823053/ee8daaeb1ae7ea4ccae1396f15e921d78b5ec0cc/1750394329/hls_264_master.m3u8 |
| screenshot_medium | 257136628/cfa031bf78cbdb630118be05dccf61c45ca9f393/movie_600x337.jpg |
| screenshot_full | 257136628/cfa031bf78cbdb630118be05dccf61c45ca9f393/movie_full.jpg |
| all_ages | true |
| is_highlight | true |
| timestamp | 14 May 2025 – 18:58:54 UTC |
