Inferno Protocol
Early Access
- Developer
- Tektonic Interactive
- Released
- Aug 28, 2026
- Steam reviews
- 80% of players recommend it, from 205 reviews — Steam calls that “Mostly Positive”
- Tags
- ActionAdventureIndie
On Linux, Steam Deck and Steam Machine
Valve rates it Unsupported on Steam Deck. Valve rates it Unsupported on Steam Machine. Valve marks it Unsupported on SteamOS.
Deck rating: Valve · Steam Machine, Steam Frame and SteamOS ratings: Valve · Compare 2,053 games · Every game Valve rated for Steam Machine
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About this game
The developer's description, from the game's Steam store page.

INFERNO PROTOCOL is a co-op survival horror set in a maze that does not stay still. There is no map you can trust. No corridor you can return to the way you came. You'll mark the walls, harvest the things that hunt you, and inject yourself with things that may save you or rewrite you. Solo or up to 6 players. Somewhere in here, there's a way out.

The maze does not stay still. The corridor you came from won't be the corridor you go back through.
Spray the walls. Drop chalk. Leave objects behind. Find old hand-drawn paper maps and figure out which ones are lying. A compass helps, until it doesn't. Remember: Memory is your map. Marks are your guide.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3908940/extras/84c2ae37390664dc1f55b9eb4d9d05cb.webp?t=1790096118
The maze keeps changing. Corridors give way to forests, deserts, frozen halls, places that shouldn't be underground.
Others walked here before you. Notes, scratched-out warnings, sketches on the walls, most of it panic, some of it useful. A few point to injectors. A few point to exits. A few point to things you shouldn't go near. Whoever left them isn't around to ask.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3908940/extras/d2aa7b8298aab4094be14db7b5b6c553.webp?t=1790096118
People live in here. Not many.
There's a settlement at the center where you can farm, build walls, and craft what you need. Outside it, smaller camps survive in the corridors. Some will talk, some will trade, some won't wait for you to draw first.
The rules of the maze cost more than ammo.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3908940/extras/189970fc7e44b399aedaf40491d3da3c.webp?t=1790096118
Resources are scarce. Scrap metal and frayed wires will only get you so far. When you take down a creature, harvest what remains, bones, armor, flesh, organs. It's grim work, and the maze doesn't care.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3908940/extras/b37153d09b5b6c932b6140cff756cba0.webp?t=1790096118
Find traps or craft your own. Plant them in the corridors, back off, and let the maze do the rest.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3908940/extras/71a2b6650e6859f618c7e9b6961712b5.webp?t=1790096118
You will find injectors. The deeper you go, the more you'll need them. Some are labeled: dash, rage, night vision, double jump, extra health. Others aren't labeled at all, and you'll use those too, sooner or later.
System requirements
As Steam lists them.
Windows
Minimum
- OS
- Windows 10
- Processor
- Core i5 6600
- Memory
- 6 GB RAM
- Graphics
- Nvidia GTX 750ti
- Storage
- 25 GB available space
Recommended
- OS
- Windows 11
- Processor
- Intel i5 8400
- Memory
- 8 GB RAM
- Graphics
- GTX 1070
- Storage
- 25 GB available space
News
What Inferno Protocol's studio and the outlets Valve syndicates on Steam have said recently.
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