Getting Started

Welcome to ctx.gg — an open source gaming platform built on the Mortar engine.

What is ctx.gg?

ctx.gg (Create Test eXecute) is a platform for creating, sharing, and competing on custom game maps. It consists of four main components:

• Mortar Engine — A C++ game engine built with Vulkan rendering, flecs ECS, Jolt physics, and miniaudio.
• Map Editor — A collaborative 3D map editor that runs in the browser, built with React, Three.js, and Yjs for real-time collaboration.
• API — A backend service (Hono + PostgreSQL) that handles authentication, map storage, and tournaments.
• Desktop App — A Tauri 2 desktop client that connects to the platform and launches the engine.

Quick Links

• Installation — Set up the desktop app or build from source
• Your First Map — Create a map in the editor and play it
• Engine Architecture — Understand how Mortar works under the hood
• API Reference — Integrate with the ctx.gg API

Open Source

All components are open source under the MIT license:

• contextgg/mortar — Game engine
• contextgg/map-editor — Map editor
• contextgg/mortar-api — Backend API
• contextgg/mortar-app — Desktop app