Test your mind’s logic! Make choices, spot biases, and outsmart your brain.
About Mostly Rational
Mostly Rational is a card app developed by Darkcity Atelier.
Download Statistics
Mostly Rational has been downloaded 240 times. In the last 30 days, the app was downloaded 4 times.
User Ratings
The app has no ratings yet.
App Information
Mostly Rational is FREE to download. The APK download size is 134.36 MB. The latest version available is 1.0.39. The last update was on May 6, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play December 2025.
Description
🕹️ Think you make rational choices? Think again!
Mostly Rational: Bias by Design is a witty and thought-provoking card game that challenges the way you think, decide, and react. Each scenario reveals how your mind bends reality — sometimes in hilarious ways.
🎯 What You’ll Experience
4 decks packed with real-world scenarios and clever dilemmas
2 free decks to play instantly, and 2 premium ones for the curious minds
Every choice tests your logic, instincts, and hidden biases
Progress through 7 unique badges — from The Curious One to The Rationalist
🧩 Play Through Human Quirks
Make snap decisions in seconds — just like in real life! Each card presents a story where you decide what happens next. Your choices reveal how “mostly rational” you really are.
💼 Decks Include
Classic Deck: Everyday biases we all fall for
Business Deck: Office mind games & decision traps
Social Media Deck: Online choices that shape your world
Corporate Deck: Power, pressure & profit — what will you choose?
🧠 Why You’ll Love It
Blends psychology with play — fun and insightful
Perfect for casual thinkers and curious minds
No data tracking — everything stays on your device
Fresh scenarios every session, designed for replayability
💬 Ready to Outsmart Your Own Mind?
Your brain thinks it’s rational. Let’s prove otherwise — one card at a time.
Play. Reflect. Repeat. Mostly Rational: Bias by Design.
Recent changes: Welcome to Mostly Rational: Bias by Design — a fun psychology game that helps you discover the hidden biases shaping your everyday decisions.
🧠 Play scenario inspired by real-life choices 🎮 Explore Everyday Decisions & Entrepreneurship decks with free starter cards 🃏 Unlock premium Social Media & Corporate Hustle decks 🏆 Earn badges & track how your thinking evolves
No sign-ups. No ads. Just smart decisions and surprising outcomes.
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I always wanted to play some card game like irrational game. This is like perfect game for it. Adding panda and bear in scenario images really add cuteness to it. Really fun game, probably one of the good mind and thinking game.
★★★★★Abizer Kota· Jan 9, 2026
Played with friends and everyone started arguing about choices 😂 very cool concept.
★★★★★Tarun Purohit· Jan 3, 2026
Perfect for game night if you like smart stuff and not just luck
★★☆☆☆Arjun P· Jun 12, 2026
Great initiative, aims to promote rationality and decision-making, avoiding biases and fallacies in everyday life. But the questions were basic, some felt weird, giving unnatural scenarios, failing to capture the significance of the bias/fallacy, and likely to be generated by AI. I urge the creator to make questions of better quality, research more and use less AI for the questions, and could also improve the UI/UX, pretty inconsistent.
Google Play Rankings for Mostly Rational
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Technologies used by Mostly Rational
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