R.A.T.: Human Error – Episode One

The world ended. Now the real nightmare begins. Deep underground, a child wakes in a infected facility. Minds are breaking. Bodies are changing. Crawl through vents, follow echoes, and escape before it’s too late. Your mother is waiting.

THE DEMOThis demo offers a glimpse into the beginning of the full game. You’ll explore the early sections of the underground bunker, experience the core gameplay, including vent crawling, exploration, dialogue with key characters and uncover the first layers of the story!This version represents an early chapter of the full experience. Progress and choices do not carry over to the final game.The full game will include additional levels, characters, endings, and expanded narrative paths that go far beyond what’s shown in this demo.Hope you enjoy!<img class="bb_img" src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4078780/extras/b6c79de4a609860ea0fc9e0e8d7c41f7.avif?t=1760281690" width=616 height=200 />The war ended in a blinding flash. Now, the earth is hollow, a fractured shell hiding the remnants of humanity. A new era of evolution is about to begin. Survivors fled underground, but salvation was a lie. A sickness spread, warping minds, twisting bodies. No one is being spared.You are a child, taken to a hidden facility deep below the surface. You don’t know why. Only that you’re sick. That everyone is. And something is wrong.You have to escape. Crawl through the vents. Follow the echoes to get to the surface. Your mother is waiting for you.<img class="bb_img" src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4078780/extras/af2efba060ab6c25ca4912f959bba658.avif?t=1760281690" width=616 height=200 />Wander through a decaying underground facility where nothing feels stable. Every room hides secrets, every object whispers fragments of a story you were never meant to uncover.<img class="bb_img" src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4078780/extras/a3e53f65b2e671c1660924fbb6b2a100.avif?t=1760281690" width=616 height=200 />The bunker is not empty. Strange figures linger in the shadows, some helpful, some deceptive, none entirely trustworthy. Their words may reveal truth… or bury it deeper.<img class="bb_img" src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4078780/extras/948893d709488e258862d0062a2a8840.avif?t=1760281690" width=616 height=200 />A labyrinth of vents and passages twisting into the dark. Something moves inside, creatures that stalk and listen in the silence. Paths split, shift, and close behind you. There is no turning back.<img class="bb_img" src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4078780/extras/fccaca57e3f701d1b63bf73650c208a8.avif?t=1760281690" width=616 height=200 />Though your journey branches in countless directions, they all lead toward the same haunting revelation. What you find depends not just on where you go, but on what you dare to see.

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R.A.T.: Human Error – Episode One Demo Achievements