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HAL Protocol

Wishlist Follow Ignore Install Unwatch Watch
App ID 3726440
App Type Game
Developer
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 ()
❓ 59.42%
1 reviews
0
In-Game

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.

Screenshots

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 ()
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 ()
Store Asset Modification Time 29 May 2025 – 11:42:32 UTC () (1748518952)
library_assets
library_capsuleen
library_heroen
library_hero_bluren
library_logoen
library_headeren
logo_position ↴
pinned_positionBottomLeft
width_pct50
height_pct61.26487011410536
osextended empty string
Detected Technologies (?) Unity Engine, UnityBurst SDK, UnityIL2CPP SDK
controllertagwizard Yes
First seen on SteamDB 6 May 2025 – 10:07:03 UTC (), in changelist #28838939

Supported Languages

1 Languages Interface Full Audio Subtitles
English Yes

Tags

🖥️ Simulation 🚶 Walking Simulator 🕴 Psychological Horror 🙌 First-Person 🧞 Choices Matter 🫂 Psychological 🌱 Realistic 🧩 Logic 🗺️ Adventure 🧊 3D 🌱 Indie 🌠 Space 🚀 Sci-fi 📏 Linear 👤 Singleplayer

Categories

Single-player Steam Achievements Family Sharing Steam is learning

Hardware Categories

Full Controller Support

Accessibility Categories

Camera Comfort Custom Volume Controls Stereo Sound Playable without Timed Input

Assets

Load all asset images
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header_image
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library_hero ↴
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library_logo ↴
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Assets
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page_background_pathapp/3726440
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timestamp23 June 2025 – 17:25:51 UTC
Trailers
257136628 ↴
trailer_nameHAL Protocol Trailer
trailer_category3
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trailer_480p/video/mp4257136628/movie480.mp4
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trailer_base_id886696
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timestamp1747249134
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