Slippi

Slippi is a fork of the Dolphin emulator that adds dedicated netplay functionality for GameCube and Wii titles. It incorporates a rollback netcode system that synchronizes game state between players, enabling smoother online matches despite latency. The fork also provides built‑in matchmaking services and the ability to record and view replays of gameplay sessions.

The software targets players who wish to enjoy multiplayer experiences for GameCube and Wii games over the internet, as well as developers and researchers interested in studying or demonstrating netplay mechanics. By extending Dolphin’s core emulation capabilities, Slippi offers a platform where existing GameCube/Wii game libraries can be used for online play without requiring original hardware.

Key distinguishing features include the integrated rollback netcode, which differs from Dolphin’s original design, and the inclusion of replay handling and matchmaking directly within the emulator. The project is marked as stable and supports macOS as a core platform.