SpinGreen

SpinGreen enables game studios, designers, and producers to instantly convert casino slot game math specifications into interactive browser prototypes without requiring art or client code development. Users simply upload their reel strips and paytable JSON to generate a fully playable prototype accessible via shareable URLs in under 15 minutes.

The platform solves the critical communication gap between math designers and engine teams by allowing the entire studio to test and feel the game rhythm, volatility, and feature mechanics before committing to full development. SpinGreen provides real-time telemetry inspection, session RTP tracking, hit frequency analysis, and supports multiple grid configurations (5×3 and 5×4 with lines or ways evaluation).

Key features include zero client dependencies, instant read-only shareable URLs, no credit card required for early access, and comprehensive session telemetry including spin counts, RTP calculations, dry streaks, and payout data. This enables rapid iteration and pivoting based on actual gameplay feel rather than theoretical spreadsheets.