Make games with AI. Play with friends.
Gessa is a free browser platform for playing games with friends and making your own with AI. Models, textures, audio and the game engine belong to one connected creation workflow.
What Gessa is
Play games with friends, or use Gessa’s built-in AI to create your own. Describe a scene, model or game rule, then keep shaping it in the engine. Rendering, physics, state, behavior, server-authoritative multiplayer and collaboration support the same project. Visual edits, code and AI instructions work with the same underlying game.
Why a browser game engine
A browser puts creating, testing and sharing within easy reach. Gessa combines an editable game engine with AI that helps build the assets and rules of a game. Start with an idea, test it with friends, and keep refining the experience together. The built-in AI is free and does not require a separate external AI account.
Who Gessa serves
Gessa brings together people looking for games to play with friends, first-time creators making an idea real, and developers and studios building game prototypes. Teams can work together in the browser; educators can build shared game projects. Experienced developers and AI agents can also work through code and the engine’s API and MCP tools.
Assets, engine and play
Generate models, textures, images and audio for your game. Build in an engine with WebGPU rendering and WebGL2 fallback, cloud projects, saves, versions and multiplayer. Publish a game for others to play.
For modeling, Gessa also offers Blender in your browser and a Blender MCP connection for AI tools. Shape the models and the game around the experience you want to create.
How to verify and reach us
The developer platform, AI-assistant facts, dated comparisons, and machine-readable overview document the public product in more detail. Corrections, company questions, and partnership inquiries can be sent through the contact page.