Bingo Commons

The boat's bingo hall, run the Commons way: the card is free, the caller is sealed, and the Café pays by the table printed below — the fewer draws you need, the more Dough lands. Three ways to play, all in one hall.

The Commons rule, printed on the door: cards are free, always — nobody sells a card here and nobody ever will. Your first card of the day in each variant is the paying card; starting it books it, finished or not. After that, practice cards are unlimited and unpaid, as long as you care to play. The Café pays because the hall is full and the tables stay friendly. Your Dough can only go up.

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Auto-daub my card

Called balls, in order

No balls called yet — the cage is full and sealed.

The prize tables — printed, all three

Classic Commons — any line

First line completed in…	The Café pays
25 draws or fewer	50 Dough
26–35 draws	30 Dough
36–45 draws	18 Dough
46–60 draws	10 Dough
61 draws or more	Nothing for the line
Blackout — every number on the card, any time	+100 Dough bonus, on top

A line is any full row, column, or diagonal — the center square is free. When your line lands you can finish the card and keep the prize, or play on for the blackout bonus.

Speed Bingo — the whole 3×3 card

Whole card completed in…	The Café pays
12 draws or fewer	30 Dough
13–18 draws	18 Dough
19–24 draws	10 Dough
25–30 draws	Nothing — but a fine card

Nine numbers, drawn from 1 to 30. No free square, no lines — the whole card or nothing. Quick hands, quick game.

Pattern Bingo — today's shape

Pattern	The Café pays
The Loaf	20 Dough
Four Corners	25 Dough
The X	40 Dough
The Frame	60 Dough
Blackout	100 Dough
Any pattern finished after 55 draws	Half the listed prize, rounded down

The shape rotates daily — the same shape for every passenger that day, decided by the date itself. Only the shape's squares count; the free center counts toward any shape that covers it.

The honest caller

How you know the caller never cheats: before the first ball, the page shuffles the whole cage and seals the full draw order under a short fingerprint, printed above your card. The balls then come out in exactly that order — the caller cannot rearrange them mid-game, because it never decides anything after the seal. When your card ends, the page reveals the complete order it committed to, and re-checks the fingerprint in front of you. If one ball had been moved, the fingerprint would not match. The seal is a small FNV-1a hash — modest mathematics, honestly labeled, and plenty to catch a shuffled cage.

Model: the Sealed Commons — a game whose randomness is committed before play and audited after, with the house's prizes funded openly by the Café. Fair Play Economics, exhibited aboard the FreeDough.