Smile Protocol
Survive intense combat, earn rewards, open cases, unlock rare skins, and customize your arsenal in this high-pressure survival FPS where every run matters.
Last Updated: 6/3/2026
| Developer | OxygenStudio |
| Publisher | OxygenStudio |
| Steam App Id | 4516900 |
Smile Protocol
Survive intense combat, earn rewards, open cases, unlock rare skins, and customize your arsenal in this high-pressure survival FPS where every run matters.
Last Updated: 6/3/2026
- Windows
- Mac
- Linux
About Smile Protocol
Smile Protocol is an Action, Indie, Simulation, Casual, and Early Access game developed by OxygenStudio. It was released on the Steam Store by OxygenStudio.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
According to Steam’s category system, Smile Protocol supports the following features:
- Family Sharing
- Stats
- Steam Achievements
- Steam Leaderboards
- Single-player
Media & Sceenshots
Watch the featured video for Smile Protocol and see the latest screenshots from the Steam Store.
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Frequently Asked Questions
Soures & References
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Smile Protocol data has been sourced from:
- Valve Corporation. (2026, June 3). Smile Protocol on Steam. Steam Store.
- Valve Corporation. (2026, June 3). Smile Protocol. Steam Community Hub.