European Roulette Engine.
Every Bet Type. One API.
A complete roulette engine with wheel simulation, inside bets, outside bets, call bets, neighbor bets, and configurable table limits. Pre-certified RTP. Full source code. Deploy on your infrastructure.
Roulette looks simple on the surface, but a production-grade engine needs to handle dozens of bet types, each with its own validation rules and payout multipliers. Inside bets alone cover straight, split, street, corner, and line variations, each requiring precise number adjacency checks against the table layout.
RTPDeck's roulette engine handles all of this with a clean, stateless API. The wheel simulation uses a cryptographically secure RNG mapped to the standard European 37-pocket layout. Every bet is validated against the table layout and limits before acceptance, and payouts are calculated automatically on settlement.
Beyond standard bets, the engine supports the full suite of call bets used in European casinos: Voisins du Zero, Tiers du Cylindre, Orphelins, and configurable neighbor bets. The racetrack layout mapping is built in, so players can place complex multi-number bets with a single API call.
Wheel Simulation
Cryptographically secure RNG mapped to the standard European 37-pocket wheel sequence. Provably fair outcomes computed server-side before any animation.
All Bet Types
Full coverage of inside bets (straight, split, street, corner, line), outside bets (red/black, odd/even, dozens, columns), and call bets with automatic payout calculation.
European and American
Default European single-zero layout with a 2.7% house edge. Switch to American double-zero layout through a single configuration flag.
Neighbor Bets
Built-in racetrack layout mapping for neighbor bets. Configurable neighbor depth with automatic straight bet placement across adjacent wheel positions.
Table Limit Config
Granular limits per bet type: different maximums for straight bets vs. outside bets, global table limits, and per-player limits. All validated server-side.
Bet Validation
Every bet is validated against the table layout, number adjacency rules, and configured limits before acceptance. Invalid bets are rejected with clear error codes.
Everything You Need for Roulette
Roulette Engine FAQ
Launch Your Roulette Table.
Every Spin, Server-Verified.
Get a production-ready roulette engine with pre-certified RTP, full bet type coverage, and complete source code.