Protocol limos is a psychological survival horror game, where panic rules a city under martial law. You play as a homeless women scavenging a militarized school for food. Rely on stealth, manage scarce resources, try to stay silent, something is watching you.

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Coming Soon To Early Access

The developers of this game intend to release as a work in progress, developing with the feedback of players.

Note: Games in Early Access are not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“We want to bring our psychological survival horror game to Early Access to involve the community directly in refining its unique, tension-driven experience. Developing a game focused on pure stealth, resource management, and atmospheric dread requires careful balancing. By launching in Early Access, we can gather invaluable player feedback on mechanics like sound detection, AI behavior, and pacing.

As indie developers, working alongside horror enthusiasts will help us fine-tune the environmental storytelling and ensure that the terror of identity theft and replacement feels deeply immersive. Your insights, bug reports, and suggestions will directly shape the final, polished version of the game.”

Approximately how long will this game be in Early Access?

“We anticipate the game will remain in Early Access for approximately 6 to 12 months. This timeframe will allow us to expand the story, polish the atmosphere, and balance the core survival and stealth mechanics based on community feedback. However, we want to prioritize quality over speed, so we may extend this period slightly if we feel the game needs more polish before its full release.”

How is the full version planned to differ from the Early Access version?

“Main purpose is to expand the full version significantly in terms of content, scope, and narrative depth. While the Early Access version offers the core gameplay loops and the initial chapters of the story, our goal for the full release is to include:

Extended Narrative: We plan to complete the protagonist's journey, revealing the full mystery behind the city's martial law and the terrifying anomaly.

New Environments: We hope to introduce additional sectors of the militarized school and potentially new urban areas to explore and scavenge.

Refined Mechanics and AI: We intend to polish the enemy AI behavior, improve the sound-detection systems, and enhance the resource management mechanics based directly on community input.

Atmospheric Polish: We plan to further enrich the environmental storytelling with more detailed audio-visual designs, immersive puzzles, and localized support for multiple languages.

Our final scope will shape up around what players find most compelling during the Early Access phase.”

What is the current state of the Early Access version?

“1. CHARACTER CONTROLLER & BIOMETRICS

Locomotion & Inertia: Dynamic locomotion system active. Joint physics mapped with soft-body inertia parameters.

Physicality & Mesh: True full-body awareness. Hair and breast physics simulated. Dynamic dirt material accumulation scales with player actions.

Stamina & Health Logic: Sprinting and jumping drain stamina, triggering accelerated heart rate and panting audio. Injury parameter applies movement speed debuff.

UI Integration: Bottom-right HUD features an animated heart widget synced to the internal stamina/fatigue variable.

Self-Damage Physics: Vertical projectile trajectory (rocks) colliding with player capsule calculates and applies fall damage to the player.

2. INVENTORY & RESOURCE MANAGEMENT

Backpack Interaction: Physicalized inventory logic. Activation forces crouch state, physically opens the backpack, and applies time-dilation (slow-motion) to the world while the UI is active.

Illumination Assets: * Glowsticks: Feature visible, real-time liquid depletion material logic.

Lighter: Depletable resource logic active.

Flashlight: Functional.

Power Systems: Fuel canisters can be carried and applied to gas generators. Activation restores power to connected environmental electronics (computers, terminals, puzzles).

3. ENVIRONMENTAL INTERACTION & PHYSICS (UE 5.4 / HORROR ENGINE)

Weather Reaction: Rain applies dynamic wetness variables to the character's clothing and glasses. Entering interior volumes triggers a state change, dynamically drying materials over time.

Foliage & Hazards: Dynamic vegetation reacts to player collision. High-speed traversal through specific bush volumes calculates a probability for scratch damage.

Destructible Geometry: Glass meshes shatter via physics-based projectiles (rocks) or high-velocity player collision (sprinting into them).

Melee & Object Physics: Crowbar weapon functional. Triggers Chaos physics destruction on boxes. Striking surfaces queries Physical Material data: unique audio per material, spark particle emission on metal surfaces.

World Objects: Physics simulated on various world items. Computes, terminals, and logic puzzles are interactable.

Complex Entity Interaction: Feline entity (cat) features advanced Inverse Kinematics (IK) and gravity calculations on its appendages when held by the player.

4. TACTICAL AI & COMBAT LOGIC

Drone AI: Aerial drone entities feature active detection radii and hostile projectile firing logic.

Projectiles: Drone ammunition incorporates ricochet physics parameters.

Offensive Player Capability: Ground rocks can be stored in the right hand and thrown utilizing a parabolic trajectory system to inflict physics damage and destroy drone entities.

5. AUDIO & ACOUSTIC SYSTEMS

Spatial Acoustics: Advanced audio propagation active. Sound waves calculate distance to near and far geometry, generating accurate environmental reverberation.

Surface Footsteps: Locomotion audio queries ground Physical Materials to output surface-specific sounds. Mud surfaces generate corresponding footprint decals.

6. CINEMATICS

Sequencer: Cutscene logic and event triggers are fully functional.”

Will the game be priced differently during and after Early Access?

“We plan to gradually raise the price as we ship new content, features, and expand the overall scope of the game toward the full release. Early Access players will have the opportunity to purchase the game at a lower price point as a thank-you for supporting the development and sharing their feedback early on. Any future price adjustments will be announced well in advance to ensure transparency with our community.”

How are you planning on involving the Community in your development process?

“We are looking forward to involve the community at every step of the development process, as player insights are vital for shaping the game's atmosphere and balance. We plan to actively engage with our players through the Steam Discussion Forums and a dedicated Discord server.

We are willing to closely monitor player feedback regarding game balance, resource scarcity, and bug reports. Additionally, we plan to share regular development updates, behind-the-scenes previews of new environments, and discuss upcoming features directly with the community. We welcome all suggestions, critiques, and ideas, as they will directly help us create the most immersive and terrifying experience possible.”
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About This Game

You play as a homeless woman, someone who was already invisible to society long before the world ended. Driven by pure desperation and the raw need to survive, you break the curfew and slip into a heavily guarded school turned military outpost, searching for anything to eat. You are not a soldier, you are clumsy and terrified. Every misplaced step or knocked-over object could be the the last thing you do.

Yet, as you hide in the shadows of the classrooms, you realize the military isn't the greatest threat. In this world, death is not the ultimate fear. The real terror is replacement.

Something is watching you. Learning your clumsy habits, memorizing your raspy voice, copying your heavy stride. The true nightmare isn't that you will perish in the dark, it’s that you will be killed, and no one will ever notice you're gone. Because someone else, wearing your exact face, will walk out of that school and take the tiny, invisible space you occupied in this broken world.

Desperate Scavenging & Resource Management: Survival demands risks. Rummage through abandoned classrooms and trash to find essential supplies. Every resource is scarce, and managing your limited inventory is a matter of life or death.

Tense Stealth & Auditory Dread: Silence is your only shield. Every interaction, from opening a rusty locker to searching a backpack, can generate noise. Navigate the dark halls carefully, in this space, you are never truly alone, and a single loud mistake will compromise your safety.

The Psychological Horror of Replacement: Experience a narrative where death isn't the worst outcome. Face a being that studies you from the dark, waiting for the perfect moment.

Mature Content Description

The developers describe the content like this:

This game contains intense violence, blood, and gore as its primary mature content. Players will explore environments featuring blood stains, mutilated corpses, and scenes depicting the violent deaths of guards, including dismemberment. The core experience involves being relentlessly pursued by a hostile and violent creature.

Additionally, the game features moments of intense physical peril and self-injury, such as the player character breaking glass windows with their head, climbing very tall buildings, and jumping out of windows.

The player character is depicted smoking cigarettes and consuming various medical or survival substances, including pills, painkillers, nitrogen sprays, and adrenaline injections.
Note: Sexual content, sexual assault, alcohol abuse, and illicit drug abuse are not present.

System Requirements

    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 and above (64 bits)
    • Processor: Intel, AMD 4 cores CPU at 3Ghz
    • Memory: 8 MB RAM
    • Graphics: AMD Radeon™ R9 290, NVIDIA GeForce® GTX 970
    • DirectX: Version 11
    • Network: Broadband Internet connection
    • Storage: 20 GB available space
    • Sound Card: Any
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 and above (64 bits)
    • Processor: Intel, AMD 4 cores CPU at 3Ghz
    • Memory: 16 MB RAM
    • Graphics: Seria GeForce RTX 2000
    • DirectX: Version 12
    • Network: Broadband Internet connection
    • Storage: 20 GB available space
    • Sound Card: Any
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