Gameplay and Checkpoint Rules
Choose a whole-coin stake between 1 and 100, limited by your wallet. Launch deducts the stake once and attempts checkpoint 1.25x with 76% survival. You can collect at 1.25x or continue to 2x with 62.5% conditional survival. Reaching 2x allows another collect or continuation to 4x with 50% conditional survival. Reaching 4x triggers automatic collection. Each step takes 450ms, and timing has no effect on the outcome. There is no continuous cash-out between checkpoints.
Settlement and Wallet Mechanics
Gross return includes the stake: multiply the whole stake by the checkpoint multiplier, then add saved fractional carry. Credit whole coins and save the remaining hundredths for a future settlement. A crash credits zero and preserves prior carry. Manual restoration sets the wallet to 1000 only when idle with whole balance below 1. Reloading abandons an unfinished round without refund.
Verified Probabilities and Evidence
Exact checkpoint arithmetic gives 95% expected gross return for each fixed target. Unconditional success probabilities are 76% for 1.25x, 47.5% for 2x, and 23.75% for 4x. One million simulated rounds per target produce estimates near that expectation. These rules describe this original demo; they do not establish a catalogue of games or other services offered by an outside PH4 operator.
Frequently asked questions
Does Island Lift prove PH4 operator services?
No. This guide provides its own original demo. It has not verified an outside PH4 operator, its games, payments or licensing.
How are fractional coins handled?
Fractional carry is saved separately as integer hundredths. It is added to the next gross settlement and never discarded by loss or refill.
What happens if I reload during a round?
The deduction is immediately saved. Reloading abandons the unfinished round without returning the stake or refunding the balance.
