The catalogue opens this month with Chess and Rubamazzo, a few apps at a time after them. See the release plan.

Bridge — aiOrion GamesInternational card game · Sixth release

Expected early November

Bridge

Bid the partnership. Play the whole table.

Two games of Bridge: the classic rubber game you play at home, and club-style Duplicate with numbered boards and dealt vulnerability. Complete auction, declarer and dummy play, five real bidding systems and the conventions you rely on.

2 games in one4Apple OS 27iPhone Duo readyNo adsOn-device play

Coming soon Read the rules

Learn

Learn the game before you play it.

An illustrated, animated walkthrough of the rules, plus a short read on what the game asks of your mind. Both open here in your browser — no download, no account.

How to play Bridge What it trains in your mind

A guide for every variant

Duplicate Bridge
How to play Duplicate Bridge For your mind — Duplicate Bridge

The rules

How it plays

Four players form North–South and East–West partnerships and receive thirteen cards each.
Bid a level and strain, pass, double or redouble; three passes after a bid end the auction.
The first player on the declaring side to name the final strain becomes declarer; their partner becomes dummy.
Players must follow suit; trump wins, otherwise the highest card of the led suit takes the trick.
The declaring side scores for making its contract; defenders score penalties when it goes down.

Availability note. Expected early November is an approximate target. The catalogue opens a few apps at a time, and each release waits until the one before it has settled in.

Ways to play

2 games for the price of one.

Every variant here is a game of its own — its own rules and legal-move checking, its own tables, its own illustrated guide, its own daily challenge, its own achievements and its own taught first game that walks you in. One purchase brings all 2. Each option below changes the table while keeping the engine's legal-move checks in charge.

Bridge

The classic home game: first side to win two games takes the rubber.

The original social form of Contract Bridge, played at home and in card rooms.
Contract points score below the line and accumulate toward game — 100 points — so part-scores carry over from deal to deal until a side completes a game.
A side that has won a game becomes vulnerable, raising both bonuses and penalties, and the first side to win two games takes the rubber and its bonus.
Holding four or five of the trump honors in one hand (or all four aces at notrump) scores extra honor points.
One long, swingy battle rather than a series of independent deals.

Arena

Rubber Arena4 players · partners

Tournaments

Rubber • knockoutknockout of 4 · 4 a table · partners

Duplicate Bridge

Club-style bridge: numbered boards, dealt vulnerability, every board scored on its own.

The form of Contract Bridge played in clubs and federations worldwide, where boards are numbered and every board is scored on its own.
Vulnerability is assigned by the board number rather than earned, there is no rubber and no carryover between deals, so a disaster costs you that board and nothing more.
In a club the same boards are replayed by other pairs holding identical cards and the results are compared as matchpoints or IMPs; that comparison needs a whole field of pairs, so here you play the boards at your own table and a board's raw score is the result — the sitting is won on total points.

Arena

Duplicate Arena4 players · partners

Tournaments

Duplicate • SwissSwiss of 8 · 4 a table · partners

Every online table is a ladder. Each Arena table and each tournament above comes at four entry levels — Challenge 10 GC, Contest 50 GC, Championship 200 GC, and a Friendly 1 GC table that returns the coin to everyone who finishes. The higher the entry level, the more places share the reward; aiOrion keeps 10% of a paid table's entries to pay for running the online game, and nothing from a Friendly one.

Make it yours. Start from any of these, adjust the settings the game allows, and save it as your own template. Online tables start the same way: copy one of the Arena tables, then set the entry, the rewards and who may join.

aiOrion events

Events in Bridge.

aiOrion's own tournaments in this game, read live from the game server: when the next ones are and how many places are taken. You enter from inside the app; the entry pays for the online game, and winning earns a reward.

Times are shown in your time zone.

Loading the events

Reading the event calendar from the game server…

All events Add the aiOrion calendar

What is inside

Built around the game, not the grind.

Five real bidding systems

Bid in Standard, Fiori Romano, 2/1, Acol or Precision — pick the one you actually play.

Author your own system

Standard, Fiori Romano, 2/1, Acol and Precision come built in, and you can add new ones: write your own, or have an AI model design a system and paste it in. The AI players bid it and the app explains its calls.

Conventions inside the systems

Stayman, Jacoby transfers and Blackwood are written into the systems that use them, and the AI players bid them.

Exact scoring for both games

Rubber bridge with honours and the rubber bonus, Duplicate board by board — the maths is done for you.

Bidding and play advisor

A reliable advisor explains the auction and the play whenever you want help.

Next move

Follow the releases.

Explore every title now; the month labels are approximate, and each release waits until the one before it has settled in. The same rules and identity run on iPhone, iPhone Duo, iPad and Mac; Apple Vision Pro follows as an update.

Coming soon See all 21 apps

Private local playOn-device AIConfigurable templatesCalm by design