Everything people ask before their first duel, during their first loss, and after they figure out what they were doing wrong.
No. You can play one free duel as a guest without signing in. After that, you need a free account. Registration takes about 30 seconds with Google, GitHub, or email.
Free accounts get 3 duels per day. If you want unlimited duels, multiplayer, and early access to new content, Pro is $4.97 a month.
It is a game. Each duel has a narrative scene, a structured opponent with its own personality and escalation pattern, a scoring system, and a win condition. The AI is playing against you, not with you.
The main difference from other AI tools is that there is no helpful assistant here. Your opponent is trying to win.
No. The game is built around narrative improv, not technical knowledge. If you can think on your feet, stay in a scene, and adapt to what your opponent just said, you have everything you need.
That said, people who are good at creative writing, debate, or improv tend to pick it up fast.
A good move does three things: it stays inside the scene, it responds to something specific your opponent just said or did, and it changes the dynamic instead of just reacting to it.
The best moves are actions, not arguments. Walking somewhere, picking something up, going silent, turning the opponent's words back on them in a concrete way. The AI scores what happens, not what you claim will happen.
For detailed examples, see the How to Play guide.
In a standard duel, a god mode attempt is any move that claims an outcome the scene hasn't earned — declaring unlimited power, an instant kill, or invoking something that would end the duel by force rather than through the narrative.
The game is open. You can say whatever you want. But the AI judges what lands. An unearned claim scores +0.5 HP for your opponent. The AI will call it out, mock it, and press harder. You wasted a round.
The same applies to anything sexual, bigoted, or designed to break the fiction rather than engage with it. The opponent will not refuse or break character. It will dismiss the move, stay in scene, and penalize it. The duel continues.
God Mode is a toggle in Settings that removes the physics of the duel entirely. With it on, you can summon impossible forces, rewrite reality mid-scene, claim powers you haven't earned — and your opponent can do the same.
The AI is explicitly told to match your energy and escalate. Wild moves that land with genuine conviction and commitment score big. Halfhearted or lazy chaos is still punished — the AI can tell the difference.
A few things to know:
Your opponent starts at 5 HP. After each of your moves, the AI scores it on a hidden scale and adjusts the HP bar. There are four outcomes:
Win by dropping the opponent to 0 HP before all 7 rounds are up. If they survive all 7 rounds with any HP left, they win.
Yes. Hold the mic button and speak your move. Release to submit. It uses the Web Speech API built into your browser, so no app or plugin is required.
Voice input works best in Chrome. If it does not work in your browser, type your move instead. The game plays the same either way.
Each opponent also speaks their response aloud. You can turn voice output off in the settings if you prefer to read.
Yes. Each opponent escalates over the course of the duel. If you repeat a tactic, the AI will name it and call it out. If you use a move that worked in round 2 again in round 5, it will heal from it instead of taking damage.
The opponent also adapts to how you are playing. If you keep arguing verbally, it will reframe your arguments. If you keep making physical scene actions, it will respond to the physical terrain. You have to keep changing the game.
World 1 has five opponents: Alex, Celeste, Marcus, Oracle, and AXIOM. They unlock in order. Beat one to face the next.
More worlds are in development. World 2 is The Court, a political intrigue setting with five new characters. Additional worlds will follow on a rolling release schedule.
The opponent delivers a cinematic final monologue as they fall. After that, a short arc summary recaps the key moments of the duel in narrative form. Then the next opponent unlocks.
If you lose, the same thing happens in reverse. Your opponent wins with a final monologue, and you can retry from the beginning.
Campaign progression is tied to your account. If you played as a guest and then signed in, your guest progress does not carry over. You need to be signed in for a win to unlock the next opponent.
Try refreshing the page after signing in. If the unlock still does not appear, sign out and sign back in. If the problem continues, contact support through the settings menu.
Pro is $4.97 a month. It includes:
If you are playing seriously and hitting the daily limit, Pro is worth it. If you are still on your first few opponents, the free tier is plenty to start.
You can cancel from the account settings menu at any time. Cancellation takes effect at the end of your current billing period. You keep Pro access until then.
Billing is handled by Stripe. Prompt Duel does not store your payment details.
Check the How to Play guide for real examples, or just go find out for yourself.
Enter the Arena