Independent guide · original demo · 18+

Ferry Locks Demo Rules

The official website of pv99.

The official website of pv99. Ferry Locks is a demo game where you choose an exit lock from one to four before the round begins. Each lock has independent survival chances, and reaching your chosen exit determines your gross payout.

Play · external link

Game Mechanics and Payouts

Before starting, select your exit lock from options one to four. Each lock has specific survival probabilities: 80% for the first, 75% for the second, two-thirds for the third, and 50% for the fourth. If you survive to reach your chosen exit, you receive a gross multiplier of 1.2x, 1.6x, 2.4x, or 4.8x respectively. Failure at any stage returns zero, and you cannot exit manually during the round. The game settles automatically at the chosen exit or at the end of the reveal sequence.

Stakes, Wallet, and Controls

Stake options are 10, 25, 50, and 100 coins, with 25 as the default. The stake is deducted once at the start of the round and persists even if you reload. You can manually restore your balance to 1000 coins only when idle and the balance falls below 10. The wallet uses integer whole coins for display, while fractional hundredths are kept separately. Reloading the page discards any unfinished round without refund or resumption.

Mathematics and Evidence

The expected return to player is 96% across all modes, with simulation results closely matching this expectation. Survival rates at exits correspond to probabilities of 0.8, 0.6, 0.4, and 0.2 when factoring in the gross multipliers. Controls for stake, start, and mode selection are disabled while the round is active. The demo requires no account, and external login buttons do not establish verified affiliation.

Frequently asked questions

What happens if I reload the page during a round?

The unfinished round is discarded without a refund or the ability to resume. The stake remains deducted, and your balance reflects the settled state or loss.

How is the fractional carry handled in the wallet?

Fractional hundredths are persisted separately from the credited whole coins. The system credits the floor of whole coins and retains the remainder, including during manual refills.