Native on-chain custody rather than a payment widget — HD deposit addresses, automatic sweeping, sponsored gas, HSM/KMS key management, and continuous solvency verification against player obligations.
Taking a stablecoin deposit is a solved problem — plenty of widgets will do it. What follows is the part that sinks crypto casinos: you are now holding bearer assets for thousands of people, across several chains, and every one of those balances is a liability you must be able to cover on demand.
That means key management that survives an employee leaving, sweeping that does not strand funds in dust, gas that does not become a per-transaction tax on your margin, and — critically — a way to demonstrate at any moment that on-chain holdings cover what players are owed.
Slotty Labs builds custody as first-class infrastructure rather than bolting a processor onto a fiat platform.
Crypto balances still have to reconcile to an internal book. The wallet is double-entry with a cryptographic hash chain over its history — tamper-evident by construction, and verifiable without trusting the operator.
All monetary computation is BigInt arithmetic in minor units. No floating point exists anywhere in the money path, so rounding drift cannot accumulate.
Pessimistic balance locking enforced at both application and database level, so a race condition cannot overdraw an account.
Network retries can never double-charge or double-credit — the same operation key resolves to the same single posting.
Automated checks of the ledger against cached balances and, for crypto, against on-chain reality — with exportable reports.
Wagering-requirement tracking is built in, and withdrawal requests ledger-lock the funds at the moment they are raised.
Every posting extends a cryptographic chain, so any retroactive edit to the books is detectable.
Withdrawals are fast and operator-controlled — approval workflow, pre-flight checks, broadcast monitoring and stuck-transaction handling included.
| Chain | Assets | Status |
|---|---|---|
| Ethereum | USDT, USDC | Live |
| BSC | USDT, USDC | Live |
| Polygon | USDT, USDC | Live |
| Arbitrum | USDT, USDC | Live |
| Base | USDT, USDC | Live |
| Avalanche | USDT, USDC | Live |
| Bitcoin | BTC | Built, in provisioning |
| Solana | SOL, USDC | Built, in provisioning |
| Tron | TRX, USDT | Built, in provisioning |
SHA-256 commit-reveal with a public verification page. The audience that asks for an on-chain casino is usually asking for exactly this — verifiable outcomes, not a smart contract for its own sake.
A crash-style cash-out game, a mines-style pick-and-reveal, and a tower ladder — the formats crypto lobbies actually run, all original and all first-party.
The five titles are Slotty Labs originals, so rounds played on them do not carry a third-party aggregator's cut.
It is the technology stack behind a casino that accepts cryptocurrency: on-chain deposit detection, a ledger that holds player balances, withdrawal processing, key management, and the games themselves. The distinguishing problem is custody — the operator is holding bearer assets on behalf of players.
USDT and USDC on six EVM chains — Ethereum, BSC, Polygon, Arbitrum, Base and Avalanche — with Bitcoin, Solana and Tron support built and in provisioning.
No. Each player is assigned HD-derived deposit addresses. They send funds from wherever they already hold them; the deposit is detected on-chain, credited automatically, and swept into managed storage.
Gas is sponsored by the platform and budgeted per tenant, so a player never needs a native-token balance to move a stablecoin, and an operator cannot be drained by a gas-price spike.
Continuous solvency verification compares on-chain holdings against player obligations per currency and per tenant, with exportable reports. The internal ledger is double-entry and hash-chained, so the books are tamper-evident independently of the chain.
No, and Slotty Labs does not present it as such. The platform provides HSM/KMS key management, cold-storage multisig and solvency reporting as technology. Custodial regulatory status is a matter for the operator's own licensing.
Book a technical demo — custody architecture, solvency reporting, key management and withdrawal workflow on real infrastructure.