Survival Probabilities and Gross Returns
Each lock has a fixed chance of survival. Lock 1 succeeds with 80% probability, returning 1.2x gross. Lock 2 succeeds with 75%, returning 1.6x gross. Lock 3 succeeds with 66.67% probability, returning 2.4x gross. Lock 4 succeeds with 50% probability, returning 4.8x gross. Failure returns zero. The expected return is calculated by multiplying survival chance by gross payout.
Stake Deduction and Settlement Rules
Your chosen stake is deducted once at the start of the round. Settlement is automatic upon reaching the exit or ending the reveal. No manual exit is allowed during the round. If you reload, the unfinished round is discarded without a refund. The stake remains deducted even if you do not finish the round.
Wallet Mechanics and Fractional Carry
The demo uses virtual coins with no cash value. A fractional carry of hundredths is persisted separately. Whole coins are credited by flooring the result, keeping the remainder. You can manually refill when idle and balance drops below 10. The refill sets the balance to 1000 rather than adding to it. Saved wallets do not resume unfinished rounds.
Frequently asked questions
What is the expected return for Ferry Locks?
The expected return is the product of survival probability and gross payout. For example, Lock 1 has an expected return of 0.96. Simulations confirm these values are consistent across all locks.
How does the wallet refill work?
Refill is manual and only available when idle. It triggers if your balance falls below 10. The refill sets your balance to 1000 exactly. It does not add 1000 to your current balance.
