COSA Studios is the platform for building, hosting, and monetizing browser-based playable worlds — with AI that understands game design.
COSA Studios is organized as three connected products — each solving a different part of the creation-to-player pipeline.
Describe game mechanics in natural language. The AI generates working configurations, scripts, and systems in real time — because it deeply understands the platform's architecture.
rideThrill is based on ride stats vs. visitor preference, waitTime tracks queue length against staffing, and nauseaRisk uses ride intensity. Park-wide modifiers for cleanliness and foodService affect every visitor's score. All economic actions have server-side validation rules so scores can't be manipulated.The AI knows five engine families, a specific SDK, defined validation rules, and platform constraints. It doesn't guess — it generates production-quality systems within a known architecture.
Everything the AI generates is visible, editable, and understandable. Inspect every configuration. Edit every script. Override any decision. You stay in control.
Non-technical creators describe their world and the AI builds it. Developers write code directly and use the AI as an assistant. Both are first-class experiences.
COSA's founder built four production SaaS platforms — 200,000 lines of shipped code — entirely through AI conversation. COSA Builder gives every creator that same experience.
Each engine family is a complete, forkable template with built-in systems that the AI understands deeply. Pick a genre. Start building immediately.
COSA Builder serves every creator — from first-timers who've never written a line of code to experienced developers who want to ship faster.
Remember RollerCoaster Tycoon? Planet Coaster? Now imagine building your own — with no engine setup, no backend, no infrastructure. Just describe it and start building.
Design roller coasters, manage staff, set ticket prices, and keep visitors happy. The Tycoon Engine handles customer satisfaction, revenue simulation, staff morale, dynamic pricing, and progression — you focus on making your park unique.
Tell the AI "add a water ride that makes visitors hungry so they visit the food court after" — and it builds the mechanic, the visitor behavior, and the revenue loop.
COSA was built because creators deserve better. Higher subscription tiers lower your transaction fees. You keep more as you grow.
Join the waitlist for early access to COSA Builder. Be among the first creators to build with AI-powered world creation tools.