Cthuloop
Spot the anomalies in a looping cosmic nightmare before your sanity cracks.
By Derelict Games. Out now on PC.
Play and Install open the Steam app on this computer
1 / 9Cthuloop is a free first-person cosmic horror adventure from indie developer Derelict Games, released on Steam for Windows PC on October 30, 2026. It is an expanded version of the studio's entry to the GMTK Game Jam 2025, where the theme was Loop.
You are trapped in a repeating nightmare with a strong Lovecraftian flavour. The only way out is to watch the loop closely, notice the eerie anomalies that creep into each pass and assemble the cryptic clues they leave, all before your sanity gives way.
It is a short experience, with the developer estimating about 30 minutes to the end, so it fits neatly into a lunch break. The screenshots show a fog-drenched landscape lit in sickly green and cyan, with glowing eyes and a monolith waiting at the end of the path.
Gameplay
Cthuloop belongs to the observation-horror family, where the game is less about fighting and more about paying attention. Each time the loop resets you walk the same ground in first person, and your job is to notice what has changed. An anomaly might be a shape that was not there before or something watching from the dark, and spotting it is how you move forward.
The clues matter as much as the scares. Cthuloop asks you to piece together cryptic hints scattered across the loop, so the run becomes a small puzzle: what is the nightmare trying to tell you, and what do you need to do differently to break it? Miss the signs and you are back at the start, a little closer to madness.
Because it grew out of a game jam, it is tightly scoped. Expect a single focused run of roughly half an hour rather than a sprawling campaign. There are no timed inputs, you can save at any time, and Steam lists full controller support for DualShock and DualSense pads, so it plays comfortably from the couch with the lights off.
Story & Setting
The setup is pure cosmic horror. You wake into a looping nightmare built from the imagery of Lovecraft's Cthulhu mythos, a place of fog, black spires and things far older than you. Each cycle drags you back to the same path, and the longer you stay the more your grip on reality slips.
Cthuloop keeps its story deliberately cryptic. There is no exposition dump, only the anomalies you notice and the clues you decode, and how you read them decides whether you escape or loop forever. It is a short, atmospheric tale rather than a lore-heavy epic, in keeping with its game jam roots.
Key Features
- Escape a looping nightmare by spotting what has changed
- Decode cryptic clues hidden across each cycle
- Explore a fog-soaked Lovecraftian landscape in first person
- Finish a complete horror run in about 30 minutes
- Play free with full DualShock and DualSense support
- Save anytime with no timed inputs to trip you up
Platforms & Availability
Cthuloop is free on Steam for Windows PC, so there is no price to pay in Malaysia, Singapore, the Philippines, Thailand, Indonesia or Vietnam. The interface is English only. Requirements are minimal, needing only a 64-bit processor and operating system, which means most PCs and laptops will cope. Full controller support covers DualShock and DualSense pads, and it saves at any point.
Why it matters
Anomaly-spotting horror has become one of Steam's favourite micro-genres, and Cthuloop gives it a Lovecraftian twist at the best possible price: free. It is a good fit for horror fans who want a quick scare between longer games and for anyone curious about what a strong game jam idea looks like once it has been polished. Streamers will like the half-hour runtime. Skip it if you want a long campaign, combat or a detailed story; this is a short, atmospheric loop and nothing more.
System requirements
| Component | Minimum | Recommended |
|---|---|---|
| Memory | 258 MB RAM |
Questions
Is Cthuloop free?
Yes. Cthuloop is free to play on Steam for Windows PC, with no price in any Southeast Asian store.
How long is Cthuloop?
The developer estimates about 30 minutes, since it is an improved version of a GMTK Game Jam 2025 entry.
What kind of horror game is Cthuloop?
It is a first-person cosmic horror game where you escape a loop by spotting anomalies and solving cryptic clues rather than fighting.
Does Cthuloop support controllers?
Yes. Steam lists full controller support, including DualShock and DualSense pads, and you can save at any time.
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Checked 1 Nov 2026. Key art, screenshots and trailer: Derelict Games via Steam.