Steam app 3908940 · updated 12 Sep 2026, 19:29 UTC
A survival horror set in a massive maze. Play solo or 6-player co-op. Scavenge resources to craft gear and survive against terrifying enemies. Unlock unique abilities and find the exit.
312 hourly samples, with the daily peak drawn over them. Weekends are shaded.
2 months, August 2026 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.
The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.
Inferno Protocol was released on 28 Aug, 2026.
2 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
12 days as the curve, each the highest figure that day. Behind it, 282 hourly samples. Each dip is a night. Weekends are shaded.
Inferno Protocol was released on 28 Aug, 2026.
| Language | Full audio |
|---|---|
| English | |
| French | |
| German | |
| Spanish - Spain | |
| Simplified Chinese | |
| Japanese | |
| Turkish | |
| Korean | |
| Russian |
A blank audio cell means full audio was not marked in the returned language list.
40 achievements in total.
23 developer announcements, Jan 2026 to Sep 2026 · times in UTC
Hi everyone! We extended the demo by request. Because of the noticeable quality gap between the demo and the full game, we've decided to take it down for a long while (maybe for good). It will be removed on September 14 at 4:00 AM EST.…
tektonicinteractiveSigns added, you can now place signs. Thrown items and shot arrows now travel more smoothly. New crosshair added for the Crossbow. Some trader items now have stock limits and only restock at set times. Fixed Crossbow arrows sometimes…
Patch notesImproved Swamp Layer visuals and gameplay.Added poisonous mushrooms to Swamp Layer.Added traders to Swamp Layer.Increased enemy density in Swamp Layer.Red-light doors in Junkyard layer can now be opened by shutting down generators.Players…
tektonicinteractiveFixed the delay issue in voice chat. Optimized voice chat on the server side. The default push-to-talk key in voice chat is now X. (It was previously J, which conflicted with the Monster Scream skill.) Fixed an issue where you would…
Patch notesUpdate Notes: You can now see recipes at the mixer station.You can now clean placed marks by pouring water on them. (Look at them with bottles)You can now access ammo for weapons that use various bullet types in your inventory and…
tektonicinteractiveThrown arrows and melee weapons now properly align with enemy hitboxes. You can now drop your bandage for a teammate while injured/downed using the 'G' / 'D-Pad Down' key. Added a "Toggled Run" option to Gameplay settings. You no longer…
Patch notesFixed the exit from the Swamp layer. Fixed a loot issue in the Swamp layer. Fixed issues occurring at the Cave interior exit. Improved gamepad input icons. Fixed UI issues with the Worm Teleporter. Fixed an issue where injecting a friend…
Patch notesUpdate NotesFixed entry issues on layer 3, you can now enter without any problems.Added a quick-access menu for using your ability. (PC: Capslock, Gamepad: L1/LB)You can now easily remove your distant teleporters by walking up to one of…
tektonicinteractiveFixed an issue where friends' save data was lost when saving in singleplayer after playing and saving together in multiplayer. Fixed a UI bug that occurred when crafting item quantities exceeded 255. Fixed lighting issues with the Wall…
Patch notesPlayers who joined the lobby later were having trouble using the crossbow. Fixed. Added an option to disable input delay: Settings → Controls → Look Input Smoothing. Bronze item blueprints were not unlocking properly. Fixed. Some structures…
Patch notesAdded mines/caves to Layer 2 (Jungle)!Added the highly requested auto-save feature. You can now adjust the save interval or disable it entirely in the Gameplay Settings. (Default: every 45 minutes.) Fixed an issue where trees were not…
tektonicinteractiveWe just pushed a hotfix update. Here's what's new:Fixed an issue where Wooden and Stone arrows couldn't be craftedFixed voice lines for several NPCsRebalanced lootFixed sound issues in the new sewer interiorRebalanced creature spawnsFixed…
Patch notesThe Inferno Protocol demo will be removed from Steam in 1 hour. Now that we've launched into Early Access, the demo has served its purpose, but we want to sincerely thank everyone who played it, reported bugs, and shared feedback. You…
tektonicinteractiveHey everyone! Our game launches on August 28th. Thank you so much for all the feedback you gave us, we managed to implement a lot of it. You've been a huge source of motivation for us, so thank you for everything.The whole team is really…
tektonicinteractivePatch Notes Added microphone selection to proximity chat. Fixed issues with proximity chat. Fixed issues with the walkie-talkie. Fixed issues with the quest list. You can now change your screen type from the graphics settings. Fixed a bug…
tektonicinteractiveBuild System• Improved the overall usability of the build system — thanks for your feedback! - Placed objects now show their facing direction. - Updated the placement effect for built objects. Creatures & Combat• The trash eater creature…
tektonicinteractiveCombat Update — Better Hit Feedback Highlights Melee combat got a full feedback overhaul: every hit now looks and feels like it lands. Zombies react to where you hit them, flinch when you interrupt them, and fall in the direction of your…
tektonicinteractiveUpdate Log — June 4 → July 1, 2026 New Content New Weapons & Items Brass Knuckle added Wrist Watch (functional UI) Leather Flask (empty & filled) Wall Torch (placable) Small Scrap Rack New Clothing Cowboy Hat Loin Cloth Leather Shoes Round…
tektonicinteractiveA big content update is arriving tomorrow for the Inferno Protocol Demo. Here's a quick look at what's coming:New Content New weapons, clothing, and items — including the Katana, Shotgun, Brass Knuckle, Wrist Watch, Belt Bag, and more.New…
tektonicinteractiveThank you all so much for checking out the Inferno Protocol demo during Steam Next Fest! 🙏 Seeing this many of you trapped in the maze together has been an incredibly emotional moment for our small team. We genuinely can't thank you enough.…
tektonicinteractiveThe Maze is Open. The Demo is Live.You've seen the teaser. You've read the warnings. Now, the door is finally open — and what lies beyond it is yours to face.The Inferno Protocol Demo is now available on Steam. Step into the Prologue, find…
tektonicinteractiveGreetings Survivors!The wait is almost over. Following the reveal of our official teaser, we’ve seen your excitement and felt the growing dread of the labyrinth. Today, we are thrilled to share some even bigger news: The Inferno Protocol…
tektonicinteractiveGreetings Survivors!The wait is finally over. We are beyond excited to reveal the official teaser for Inferno Protocol, our upcoming 6-player co-op survival horror experience.Step into the darkness and prepare yourself for a challenge where…
tektonicinteractiveWhat Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | Inferno Protocol.exe | windows |
The folders Steam Cloud syncs. The root is a token Steam uses for a location on your own machine, not a path this page can know.
| Root | Folder | Files |
|---|---|---|
WinAppDataLocalLow | Tektonic Interactive/Inferno Protocol | *.dat and below |
WinAppDataLocalLow | Tektonic Interactive/Inferno Protocol | *.json and below |
WinAppDataLocalLow | Tektonic Interactive/Inferno Protocol | *.jpeg and below |
WinAppDataLocalLow | Tektonic Interactive/Inferno Protocol | *.flag and below |
It runs on public data and somebody's spare time.
https://paypal.me/KintaroPalPay[email protected]0x4d559C765AA8BFe336E36d5b76024926767eD38dTJtctWU9uetJaTBoSybd1RErW7n9duTKVG