GGPO

Spec sheet

Purpose

GGPO is a zero-input-latency networking library for peer-to-peer games.Read 9 Oct 2026 · ggpo.net

License

GGPO is available under the MIT License for commercial and non-commercial use; attribution is appreciated but not required.Read 9 Oct 2026 · github.com

Build platform

The project README says building is currently available only on Windows, with efforts underway to port it to other platforms.Read 9 Oct 2026 · github.com

Build tools

Windows builds require Visual Studio 2019 and CMake.Read 9 Oct 2026 · github.com

Contact

The official site offers a contact form for licensing inquiries on terms other than the MIT license and other messages.Read 9 Oct 2026 · ggpo.net

Engine requirement

Rollback networking is designed to integrate with a fully deterministic peer-to-peer engine.Read 9 Oct 2026 · ggpo.net

History

The official site says GGPO was created in 2009 and pioneered rollback networking in peer-to-peer games.Read 9 Oct 2026 · ggpo.net

Integration

Integration requires the game to save and load state and execute a frame of game state without rendering its outcome.Read 9 Oct 2026 · ggpo.net

Intended games

The SDK is designed to hide network latency in fast-paced games that require precise inputs and frame-perfect execution.Read 9 Oct 2026 · ggpo.net

Resimulation

When received inputs differ from predictions, the game can be resimulated from the point of divergence.Read 9 Oct 2026 · ggpo.net

Rollback

It uses input prediction and speculative execution so gameplay can proceed while remote inputs are in transit.Read 9 Oct 2026 · ggpo.net

Sample

The Vector War sample application demonstrates synchronizing two clients and includes examples for two-, three-, and four-player games.Read 9 Oct 2026 · github.com

SDK contents

The repository contains the SDK code, documentation, and sample applications.Read 9 Oct 2026 · github.com

Plans and prices

Every GGPO plan and price →

Where Specifiction places it

• Game Networking Middleware#18 of 297.7