About Mind Duel

Mind Duel is a real-time debate game. You pick a philosopher — Socrates, Nietzsche, Camus, Aristotle, Churchill, and two dozen others — pick a topic, and argue. An AI judge scores every turn. Win streaks unlock rarer opponents. Losing hurts.

Most people read philosophy passively. You can read the Meditations twenty times and still not know what you actually think about Stoic apatheia — because you’ve never had to defend it against someone who disagrees. Mind Duel makes you defend it. The goal is simple: fewer half-formed opinions, more hard thinking.

Every philosopher is a carefully-tuned persona running on Anthropic’s Claude models. They are not the actual philosophers — they are fictional simulations based on the public-domain writings and widely-accepted interpretations of each thinker. They will sometimes be wrong. They will sometimes be brilliant. Treat their arguments as sparring partners, not as authority.

A separate AI judge evaluates each of your arguments on rigor, originality, and rhetorical force. Scores are transparent — click any turn in the transcript to see the reasoning.

Mind Duel is built and run by Mind Duel from Bulgaria. One-person operation, no VC, no ads, no data resale. Revenue comes from optional subscriptions and token packs — that’s it.

We collect the minimum to make the product work. No tracking pixels, no behavioural advertising, no fingerprinting. Your debates belong to you; share them if you want, delete them if you don’t. See the Privacy Policy for specifics.

Support: support@mindduel.app

Legal / data requests: legal@mindduel.app

For press, partnerships, or “why is Kant so mean to me” complaints, try support first.