SpinGreen

SpinGreen is a casino game math preview tool that converts slot game specifications into instant browser-based prototypes. Game studios, designers, and producers can test rhythm, volatility, and feature feel for their next title before writing any client code or commissioning artwork.

The platform eliminates the communication bottleneck between math designers and engine teams by providing a quick, shareable way to experience game mechanics. Users simply drop their reel strips and paytable JSON, then instantly spin with real-time telemetry data including RTP, hit frequency, and payout information.

Key features include zero client dependencies, instant read-only shareable URLs, real-time telemetry inspector, support for 5×3 and 5×4 grids, multiple game speeds, and turnaround under 15 minutes. No credit card required to get started.