Independent guide · original demo · 18+

Paper Bridges Demo: Odds and Payouts

This guide explains the worked probability and payout examples for the Paper Bridges demo only. It describes the actual mechanics, wallet rules, and observed facts without claiming external verification.

Play · external link

Game Mechanics and Payout Structure

Paper Bridges features four rows of three bridges with one hidden hazard per row. You select one bridge per active row, and gross returns for completing one to four safe rows are 1.44x, 2.16x, 3.24x, and 4.86x respectively. The stake is deducted once at the start, and the fourth row settles automatically. Available stakes are 10, 25, 50, and 100 virtual coins, with 25 as the default.

Probability and Simulation Evidence

The expected return is calculated as 0.96, derived from the formula (2/3)^k * 0.96 * (3/2)^k. Simulation data from one million rounds shows simulated RTPs ranging from 95.79% to 96.08% across different modes. These figures reflect the actual mathematical evidence for the demo and distinguish exact expectations from measured estimates.

Wallet Rules and Settlement

The initial balance is 1000 virtual coins, with manual refill available only when the balance drops below 10. Fractional carry is persisted separately, while whole coins are credited and stored. Reloading discards any unfinished round without refund, and controls are disabled while the game is active. No external cashier or cash value exists in this local demo.

Frequently asked questions

How is the gross return calculated?

Gross returns include the original stake and differ from net profit. Payouts are computed in hundredths, adding saved fractional carry before crediting floor whole coins.

What happens if I reload the page?

Reloading discards any unfinished round without refund or resumed settlement. The stake remains deducted, and controls reset to their default state.