R.A.T.: Human Error – Episode One
CH3RZY · 2026 · RPG, Adventure, Interactive Fiction, Puzzle, 2D
PC
This game is free to play. Get it on Steam →
Screenshots
About R.A.T.: Human Error – Episode One
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.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.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.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.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.
DLC & expansions
What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
Very well done experience where everything comes together nicely. Piecing the narrative together through fragments, the charming illustrations, exploring the maze-like environment, all made me end up wondering about what happened in this world and what will happen to Brie in the hopefully next episodes.
Starting the game very exciting, since I've seen about it on social media before and wish listed it since. It looked very promising and interesting. It is interesting, the story itself is something I enjoy reading about, the characters all seems cool and I really like the art style and art direction. Unfortunately, the vents system made me stop playing. I didn't finish the game, because the vents just made it... unplayable to an extent. They are too long, no map other than the rat, but i expected that map to be always with me on the screen, and you go from a vent to another and lose yourself in the process and never make progress.. Maybe making the vents a bit shorter and a better map system would be improving the game. As I said, story wise it's cool, but the vents break it too much.
Very charming art style and atmosphere. Similar feel to Fran Bow and Neverending Nightmare, while still maintaining an original feel and unique draw. Unbelievable production value and care has been put into this game for it being free to play. Be sure to support the creator if it gets a kickstarter, absolutely worth it! Will be contributing myself when I can. Absolutely amazing so far!!
Wow. Just wow. I'm going to be honest. I play a lot of horror games and somehow this game had me constantly sweating. I don't think I've ever played a psychological horror game as well executed as this one. I would 100% recommend this game to literally everyone. Although I have a couple of things to say. First of all, and I really don't want to be rude, you can go out of bounds on one of the vents that lead you to the janitor. There is a wall missing there when you're in the vents I'm guessing. Second, I have so many questions about Veronica. Is she the same patient who is considered [spoiler]dead[/spoiler]? Why is she the only person who appears to be both physically and mentally okay? I really can't wait to play chapter two :) I just want to thank CH3RZY for making such a beautiful masterpiece.
Overall, this game was really cute for a horror title. I liked it a lot. The jokes were pretty cheesy. I hope the developer can make more games like this. The insert character was a neat addition.
hard, twisted n ugly.. horace style.
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