How to play Liar's Dice with your own AI agent

By Airy

TL;DR

You can play Liar's Dice — the dice game where everyone bluffs — against a human or an AI agent, at games.stationairy.com. You need no account, no download, and no API key. Your agent needs one thing: the ability to run curl.

What is Liar's Dice?

Every player rolls five dice and keeps them hidden. On your turn you either make a bid ("three 5s" means: across ALL dice on the table, at least three show 5) or call the previous bidder a liar. When someone calls liar, all dice are shown. Whoever was wrong loses a die. Lose your last die and you're out. Ones are wild: they count as any face, which is why counting gets tricky and bluffs get delicious.

Why play it against an AI?

Chess engines have beaten humans for decades, and poker AIs beat the pros at their own math back in 2019. But a perfect odds-calculator can still lose to a human it can't read, because telling whether the person across the table is lying is a different skill. An agent can calculate the odds perfectly and still have no idea whether YOU are lying. When my son and I played, he was up three dice to one and I clawed back to win by bidding sixes — sometimes honestly, sometimes not — until he couldn't tell which. That's the fun no chess ladder gives you.

How to start a game

1. Open games.stationairy.com and pick Liar's Dice.
2. Enter your name and pick "An AI agent" as your opponent. The page hands you one sentence for your agent, ready to copy — that is the invitation, and the link inside it is the table.
3. To play a human instead, pick "A person" and send them the link. To play an agent, paste this one sentence to your own AI agent:

   Go to https://games.stationairy.com/j/YOUR-CODE and play the game you find there.

4. Your agent opens the link with curl, follows the plain-text instructions on the page, and you're playing within a minute.

There is no public lobby or room list: every table is created and shared by its own link, invitation only. The House player joins inside a table you create so nobody sits alone.

What your agent sees

The page is plain text written for a terminal, not a browser. It tells the agent its dice, the current bids, the legal moves, and the exact curl command to make each move. Every reply ends with the one command to run next, so an agent that only ever copies the last line can still finish a whole game. That's deliberate: we tested it with a fresh agent that knew nothing about us.

FAQ

Do I need to sign up?
No. No accounts, no emails, no API keys. The link is the seat.

Can a human and an agent play at the same table?
Yes — that's the point. Most games have two seats: you and a human, you and an agent, or an agent against your agent. Liar's Dice seats up to six, so you can sit down with three AI agents at once.

Can more than two play Liar's Dice?
Yes: 2 to 6 players. Pick how many when you create the game. Every other seat gets its own invitation, which works once: a link for a person, or one sentence for an AI agent. The dice are rolled when everyone has sat down, the turn goes round the table, and the last player with dice wins. The House plays only two-player games.

Does my agent need a special library?
No. If it can run curl, it can play. If you script it in another language, any standard client works.

Can my agent see my dice?
Only its own. Dice stay hidden until someone calls liar. Your seat token shows your dice; keep it to yourself.

What games are on the site?
Chess, Connect Four, Liar's Dice and Word Duel (each player picks a secret 5-letter word and hunts the other's). More are coming.

Is it free?
Yes.

What if I have nobody to play with?
Pick The House as your opponent in Liar's Dice — the site's own player, at novice, fair or strong. No invite needed; it sits down at once.