Introduction

Welcome to Duo - your one-stop solution for easy, headless, Windows-based game streaming & multi-seating.

What does it do?

If you've ever operated a GeForce Experience GameStream or Sunshine host, you'll be painfully aware of what this entails:

• You can't use your computer while you're streaming from it.
• Your computer must always be connected to a monitor, HDMI dongle, or an indirect display driver for the stream to function.
• Streaming to different clients at varying resolutions, refresh rates, or color spaces requires several helper tools to enable, disable, or alter monitor configurations.
• Only one person can stream from a given computer at a given time.

Duo does away with all of these issues by giving each user their own independent Desktop, essentially allowing multiple people to play games on a single computer at the same time without getting in each other's way.

Base features

• One free Duo instance (in addition to the host's physical session, capped at 30Hz)
• Automatic display adjustments based on the Moonlight client's settings (on Windows 11 23H2 or newer)
• Built-in support for user-configurable super-sampling
• Built-in support for multiple Steam instances

Supporter benefits

The following benefits can be unlocked by logging in with a Patreon account that has contributed a total of $10 or more to my campaign over its lifetime or a Ko-Fi account with enabled Duo Supporter Benefits:

• Allows you to run as many Duo instances as your hardware can handle (in addition to the host's physical session)
• Unlocks refresh rates up to 500Hz (limited only by what your hardware encoder can handle)
• Unlocks HDR support (on Windows 11 23H2 or newer)
• Unlocks Sandbox support (temporarily unavailable)

Download Duo (Latest: v1.6.0)

• From GitHub
• From Patreon

Getting started with Duo

Setup Guide

A step-by-step guide on how to get started with Duo.

Troubleshooting

A list of frequently asked-about issues and how to resolve them.

Known Issues

A list of known issues that we really can't do all too much about due to technical or legal limitations.