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Leaf

Lightweight, scalable game server framework in Go

Game Servers ★ 5.5k stars Medium setup Apache-2.0

Leaf is a lightweight and modular game server framework written in Go, designed for high concurrency and easy development of online game backends. It provides modules for networking, logging, and inter-module communication.

Official siteSource code

Key features

  • Lightweight modular design
  • High concurrency support
  • Built-in networking modules
  • Simple game backend development

Strengths

  • Released under the Apache-2.0 license
  • Mature project with 5.5k GitHub stars
  • Written in Go
  • Tiny footprint — runs in 256 MB RAM

Is Leaf secure?

OSV.dev has no published security advisories for Leaf's repository. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

Source: OSV.dev, checked 2026-10-14. How this is measured.

Leaf replaces

Self-hosted proprietary game backends alternatives

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