Independent guide · original demo · 18+

Paper Bridges: Probability, Payouts, and Wallet Rules

The Paper Bridges demo offers a four-row bridge game where you choose one safe bridge per row to increase your gross return. This guide details the exact odds, payout multipliers, and wallet mechanics based on observed evidence.

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Game Mechanics and Probability

The game features four rows of three bridges, with exactly one hidden hazard per row. You select one bridge in the active row; if it is safe, you may collect or continue. The probability of surviving k rows is (2/3)^k. The game settles automatically after the fourth row. Choosing a bridge resets the round if you exit or reload, with no refund for unfinished rounds.

Payout Structure and Settlement

Gross returns include your original stake and are calculated as follows: 1.44x after one safe row, 2.16x after two, 3.24x after three, and 4.86x after four. The stake is deducted once at the start. Payouts are computed in hundredths, with fractional carry persisted separately. Whole coins are credited via floor rounding, and the remainder is kept. The expected return is 96%.

Wallet Rules and Controls

The demo uses virtual coins with no cash value. Stakes of 10, 25, 50, or 100 are available, with 25 as the default. A manual refill is only available when the balance is idle and below 10, setting the balance to 1000 rather than adding to it. Controls disable during active rounds, and reloading discards unfinished rounds without refund.

Frequently asked questions

How is the payout calculated in the demo?

Payouts are computed in hundredths and include the original stake. Whole coins are credited by flooring the result, while the fractional remainder is persisted separately for future use.

What happens if I reload the page during a round?

Reloading discards any unfinished round without refund or resumed settlement. The deducted stake remains lost, and the game resets to the initial state.