StoreHAL Protocol
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.
| App ID | 3726440 |
| App Type | GAME |
| Developers | The Last Semicolon Dev |
| Publishers | The Last Semicolon Dev |
| Categories | Single-player, Steam Achievements, Full controller support, Family Sharing |
| Genres | Indie, Simulation |
| Release Date | 23 Jun, 2025 |
| Platforms | Windows |
| Supported Languages | English |
HAL Protocol Screenshots
View the gallery of screenshots from HAL Protocol. These images showcase key moments and graphics of the game.
