Terms, jurisdiction & fairness

1. Operator & jurisdiction

GoKinko (gokinko.com) is operated from San José, Costa Rica under a data-processing corporate registration. Access is restricted to individuals aged 18+ (or the legal age of majority in their jurisdiction).

Excluded jurisdictions: residents of Costa Rica (CR), France (FR), Mainland China (CN) and OFAC-sanctioned countries are blocked from accessing or wagering on GoKinko. Jurisdictions configured for social / entertainment compliance automatically operate in non-cashable Arcade Token mode.

2. Provably fair reel stops

Before any spin, GoKinko commits to a 256-bit server_seed by showing its one-way SHA-256(server_seed) hash in your browser. The seed itself is revealed when you rotate it, so every past spin can be re-computed.

For spin nonce and reel index reel on a strip of length L, the stop is derived from HMAC-SHA256(server_seed, client_seed:nonce:reel:attempt) with 32-bit unsigned rejection sampling (limit = 2^32 − (2^32 mod L)), so every stop 0 … L−1 has probability exactly 1 / L with no modulo bias.

On machines with Nudge or Hold & Respin, the feature decision uses the same HMAC stream at virtual reel indices 99 (feature roll, 0–9999 basis points) and 98 (nudge count). A feature is only offered after a non-winning paid spin; a respin consumes the next nonce with the held reels forced to their current stops. Both are reproducible from the Fairness panel.

3. Deposits, turnover & Arcade Tokens

Real-balance deposits (direct crypto, card / Apple Pay on-ramp, or vouchers) require a 1× wagering turnover on slot machines before withdrawal, to prevent payment-rail abuse.

In Arcade Token mode, winnings are credited only as non-cashable Arcade Tokens which cannot be withdrawn for money and may be exchanged in the Token Shop.