Skip to content
Geeky Alien
Purranoia

Screenshots

Purranoia screenshot 1
Descriptive Trailer trailerWatch trailer on Steam ↗

Purranoia

Eerie Veery · Published by Eerie Veery · Official site ↗

Last updated 28 Sept 2026

Purranoia is an action roguelike with a twist: you don’t control movement. Instead, you wield powerful scientific inventions to protect the frightened cat Mousti from waves of questionably designed robots and hostile lab creations.

Free to PlayComing SoonDJCTQ 10Full Controller Support

Free

View on Steam

Prices can lag the live Steam store — always confirm before buying.

Action · 2026 · More free games

Navigate Purranoia's tense corridors as you strategically deploy inventions to protect cat Mousti from relentless foes. An action roguelike where movement isn't in your hands, but clever thinking is.

About this game

The Gameplay

Purranoia is an action roguelike where you fight off hordes of foes, with a major twist: you cannot control your movement. Instead, you wield a wide range of powerful scientific inventions to defend Mousti.

Each invention behaves drastically differently from the last. Combining them leads to thousands of distinct builds. With enough upgrades, you can achieve near-permanent invulnerability or the ability to clear the entire screen of foes.

Every foe defeated grants score points used to unlock Purrks. Purrks range from increased survivability, to unlocking advanced inventions, to raising difficulty in exchange for higher score gains each run.

Features

  • 25 Inventions with unique playstyles

  • 8 Enemy types with their own strengths and weaknesses

  • 5 difficulties

  • 3 maps

  • 26 Purrks to unlock

  • lots of achievements to unlock

  • easter eggs to discover

The Story

“It’s crucial to understand that Schrödinger’s cat is a thought experiment, not a real experiment that was ever performed or intended to be performed. Until…”

A mad scientist uses the innocent cat, Mousti, as the subject of a dangerous quantum experiment. Help Mousti survive using the scientist’s own inventions. How this chaos advances science is unclear, but the scientist seeks glory, and Mousti holds the key to the experiment’s outcome.

Join a hectic, action-packed escape as you travel with Mousti, fleeing the clutches of a mad scientist in search of home. Grow stronger with each escape attempt. Just powerful enough, perhaps, to finally make it back home...

System Requirements

Will my PC run this? →

Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10 (64-bit)
  • Processor: Intel Core i3-2100 / AMD FX-4300
  • Memory: 4 GB RAM
  • Graphics: Integrated GPU (Intel HD 4000 or equivalent)
  • DirectX: Version 11
  • Storage: 500 MB available space
  • Sound Card: Any

Recommended

Recommended:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10 (64-bit)
  • Processor: Intel Core i5-4460 / AMD Ryzen 3 1200
  • Memory: 8 GB RAM
  • Graphics: Dedicated GPU (GTX 750 / RX 560 or equivalent)
  • DirectX: Version 11
  • Storage: 500 MB available space
  • Sound Card: Any

Supported Languages

English

Latest news

We use strictly necessary cookies to run this site. We don't currently set any analytics or advertising cookies. See our Cookie Policy for details.