Rune

Rune is a platform for building and distributing multiplayer web games, aimed at web developers who want to make games without learning traditional game networking. Developers write their game logic in JavaScript or TypeScript and render with any web framework or engine such as React, Phaser, PixiJS, or Three.js, and Rune's SDK handles the hard multiplayer problems automatically: it runs the game logic on servers around the world using a predict-rollback model so players see low-latency, synchronized state without writing netcode, and it provides matchmaking, spectating, voice chat, and persistence. Finished games are published into the Rune app, a social gaming platform with tens of millions of installs on iOS and Android where people play together in voice-chat rooms, which gives indie developers built-in distribution and discovery. The core SDK is open source, and Rune is free for both developers and players; the company makes money by taking a share of revenue that developers earn from their games rather than charging upfront fees. It is aimed at hobbyist and professional web developers interested in game development who want a fast path from idea to a live multiplayer game with an audience.