R.A.T.: Human Error – Episode One

R.A.T.: Human Error – Episode One

CH3RZY · February 2, 2026 · RPG, Adventure, Interactive Fiction, Puzzle, 2D

R.A.T.: Human Error – Episode One is free to play — no purchase needed. We track it so you know if that ever changes.

PC
Positive93% · 43
This game is free to play. Get it on Steam →

Screenshots

R.A.T.: Human Error – Episode One price

R.A.T.: Human Error – Episode One is free to play — there is no purchase price, on Steam or anywhere else we track. We keep watching it, so if it ever stops being free the price history on this page will show when that happened and what it changed to.

About 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.

R.A.T.: Human Error – Episode One — game info

Platforms
Windows
Steam Deck
Playable
Player modes
Single-player
PC Game Pass
Not included

DLC & expansions

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Sep 24, 2026
Crazy this game only has 43 reviews great game cant wait for future episdoes thank you
1 found this helpful
Recommended Aug 31, 2026
so excited for the full game
1 found this helpful
Recommended Sep 9, 2026
R.A.T.: Human Error: Episode One is a surprisingly unsettling little horror adventure, and I liked how quickly it pulled me into its strange underground world. I play as a sick child trapped inside a hidden facility after a catastrophe has devastated the surface, with the only clear goal being to escape and find my mother. The story gives me just enough information to make me curious without explaining everything immediately. The exploration is the main focus, with me moving through the decaying facility, checking rooms, reading clues and interacting with strange characters. I liked how the game makes the environment itself part of the mystery. Almost every area feels like it has something being hidden from me, and the conversations are often just as important as the physical things I discover. The vent sections are probably the most memorable mechanic. They turn into maze like passages filled with darkness, creatures and branching routes, which makes navigating them surprisingly tense. I liked the idea because getting lost becomes part of the horror instead of just being an inconvenience. It creates a feeling that the facility is much larger and more dangerous than it first appe…
Recommended Sep 8, 2026
Super fun so far!! The story is really interesting and I LOVE the art style. I hope we hear about the next chapter soon!
Recommended Aug 12, 2026
I am SUUUPPERRR excited to see where this game goes, the art is so cool and I really like the style used in the game. The concept is really awesome too, I really like games set in post apocalyptic settings and its even better when it focuses on the people instead of the politics. The puzzles are nice and the vent sections I HEAVILY struggled with but that's just because if I ever go into a corn maze I think I would die of hunger because I would get so lost that I'd lose the corn in the corn maze. The opening section and the dialog with Obu and maprat really stuck with me, but Obu especially. I cant put into words how profound his words were and how painfully relevant it all seems. Its so easy to understand and the way it was presented truly felt like an old family member sitting you down and giving a speech that sticks with you for the rest of your life. Also the rats and the jokes are neat. PEAK GAME
Recommended Jul 3, 2026
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.

Community reviews

—

0 reviews

Sign in to write a review.

No reviews yet. Be the first to review this game.

More like R.A.T.: Human Error – Episode One

News

All news →
Games like Undertale that remember what you didPC

Games like Undertale that remember what you did

Undertale's own listing calls it the RPG where you don't have to destroy anyone. Games like Undertale that keep that idea: permanent choices, fights you can talk past, worlds that notice.

Nov 14, 2026
Games like Slay the Spire that keep the branching climbPC

Games like Slay the Spire that keep the branching climb

Most games like Slay the Spire copy the cards and lose the map. These keep the risky-or-safe choice, from a three-floor train to a deck made of poker hands.

Nov 14, 2026
Bodycam game price: what the zombie update changes about buyingPC

Bodycam game price: what the zombie update changes about buying

The Dead & Damned put Bodycam's zombies back on 13 November. What our dated record says about the Bodycam game price, and why the store's end date matters more than the sticker.

Nov 14, 2026
SilkMU is our new partner: MU Online Season 6 in a browser tabBlog

SilkMU is our new partner: MU Online Season 6 in a browser tab

SilkMU, a MU Online Season 6 server that runs in a browser tab or as an app, opened on 6 November 2026 and is now our partner. What it offers, what is free and what costs WCoin.

Nov 13, 2026
Games like Dying Light, where nightfall changes the rulesPC

Games like Dying Light, where nightfall changes the rules

Games like Dying Light are easy to find if you only want parkour or only want zombies. These eight keep the part that matters: a city that becomes a different place after dark.

Nov 13, 2026
Games like Portal 2, where one idea carries the whole gamePC

Games like Portal 2, where one idea carries the whole game

Games like Portal 2 all share one habit: teach a single impossible trick, then spend a campaign breaking it. From rewinding objects through time to Escher geometry that loops back on itself.

Nov 13, 2026
Planet Coaster DLC: skip the collection, buy the packsBundles

Planet Coaster DLC: skip the collection, buy the packs

The Planet Coaster DLC catalogue closed in 2019, so there is no curve left to wait out. Our record shows the collection bundle costs far more than assembling the same packs one by one.

Nov 13, 2026
Toxic Commando Game Pass: subscribe, or buy the key?Xbox

Toxic Commando Game Pass: subscribe, or buy the key?

The Toxic Commando Game Pass add landed on 12 November. Our price record since late September shows the key route barely moved, which changes what a subscription is worth.

Nov 13, 2026

Top games right now

All rankings →
  1. 1Counter-Strike 2Free
  2. 2Dota 2Free
  3. 3PUBG: BATTLEGROUNDSFree
  4. 4Grand Theft Auto V Legacy—
  5. 5Terraria$2.11
  6. 6Tom Clancy's Rainbow Six SiegeFree
  7. 7Rust$20.19
  8. 8Garry's Mod$6.19
  9. 9Team Fortress 2Free
  10. 10Black Myth: Wukong$35.72
  11. 11HELLDIVERS™ 2$23.99
  12. 12ELDEN RING$38.88
  13. 13Apex Legends™Free
  14. 14Left 4 Dead 2$9.99
  15. 15Stardew Valley$12.11
  16. 16Wallpaper Engine$3.99
  17. 17Cyberpunk 2077$17.99
  18. 18Euro Truck Simulator 2$4.99
  19. 19Dead by Daylight$6.81
  20. 20Red Dead Redemption 2$12.97
  21. 21The Witcher 3: Wild Hunt$9.77
  22. 22Baldur's Gate 3$53.52
  23. 23Phasmophobia$15.60
  24. 24War ThunderFree