User Guide

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How to Stream a PC Game on Twitch with OBS

If you’ve settled on Twitch, check the game you want to stream before going through this guide.

Some PC games have built-in Twitch support. But, for most games, you’ll need a third-party streaming

program to broadcast your gameplay like Open Broadcaster Software (OBS). That’s what we’ll be

setting up today.

Lastly, Twitch recommends fairly powerful hardware for streaming. Twitch itself recommends you use

an Intel Core i5-4670 or AMD equivalent CPU, at least 8 GB of DDR3 SDRAM, and Windows 7 or newer. If

your stream doesn’t perform smoothly, you probably need a faster CPU and perhaps more RAM. Your

Internet connection’s upload bandwidth is also a factory. Higher-quality streams need more upload

bandwidth.

Got all that? Alright, here’s what you need to do.

1.Get a Twitch stream key from your Twitch.tv profile

2.Download Open Broadcaster Software and set up Game Capture mode

3.Add your Twitch key to OBS’ Stream Settings

4.Click “Start Streaming” and play your game

JUST THE STEPS

Step One: Get a Twitch.tv Stream Key

We’re broadcasting using Twitch because it’s the most popular option. Sure, you could host your

own stream and stream directly to your viewers, but it takes much less upload bandwidth to stream a

game to a website like Twitch and allow that website to rebroadcast it to your viewers. You could also use

other websites, like YouTube Gaming.

First, you’ll need to make a free Twitch account you’ll stream the game with. Just visit Twitch.tv

and create an account. After creating an account, click your account name at the top-right corner of the

Twitch homepage, select “Dashboard”, and click the “Stream Key” heading. Click the “Show Key”

button to get your private key.

You’ll need this key to stream to your channel. Anyone who has the key can stream to your channel,

so don’t share it with anyone else.

Step Two: Set Up OBS Game Capture Mode

Open Broadcaster Software (OBS) is a free, open-source video recording and streaming application

that’s ideal for streaming on Twitch. OBS can record a screencast and save it to a local video file, but it

can also live stream to a service like Twitch or YouTube Gaming. OBS also allows you to add additional

elements to your stream, so you can add live video from your webcam, image overlays, and other visual

elements.

Download Open Broadcaster Software here, install it, and fire it up. OBS organizes your screencast

into “scenes” and “sources.” The scene is the final video or stream—what your viewers see. The

sources are what comprise that video. You could have a scene that displays the contents of a game

window, or a scene that displays the contents of a game window and your webcam superimposed over it.

You could set up separate scenes for each game you want to stream and switch between them on the fly.

For our purposes right now, the default scene will work fine.

Summary of content (7 pages)

PAGE 1
How to Stream a PC Game on Twitch with OBS If you’ve settled on Twitch, check the game you want to stream before going through this guide. Some PC games have built-in Twitch support. But, for most games, you’ll need a third-party streaming program to broadcast your gameplay like Open Broadcaster Software (OBS). That’s what we’ll be setting up today. Lastly, Twitch recommends fairly powerful hardware for streaming.
PAGE 2
Add a Game Capture Source The first thing you’ll need to do is add a game capture source to your scene. Right-click in the Sources box and select Add > Game Capture. Select “Create New”, name the capture whatever you want to call it, and then click “OK”. Under “Mode”, select “Capture any fullscreen application” and OBS will automatically detect and capture full-screen games you play. If you’re playing a windowed game, select “Capture specific window” in the mode box and select the application.
PAGE 3
You can tweak the other options here, or change them later. Just click the game capture source in your Sources list and select “Properties” to access these same options. Click “OK” to leave this window. Now, Launch a full-screen game. If you Alt+Tab out of it (or if you have multiple monitors), you should see its preview in the main OBS window. If you don’t see a preview, tr y right-clicking in the center of the window and check that “Enable Preview” is enabled.
PAGE 4
Now, add a new source like you added the game capture source. Right-click in the “Sources” box and select Add > Display Capture. Name the source whatever you like and click “OK”. Choose the display you want to add—there will only be a single display if you only have a single computer monitor—and click “OK”. A preview of your desktop will appear in the main OBS window. OBS will stream whatever you see on your screen. If Game Capture doesn’t work , this may work better.
PAGE 5
Choose Which Audio You Want to Broadcast By default, OBS captures your desktop audio—ever ything playing on your PC, including any game sounds—and audio from your microphone. It will include these with your stream. To change these settings, use the Mixer panel that appears at the bottom of the OBS window. For example, to mute either type of audio, click the speaker icon. To adjust the volume, drag the slider to the left or right. To choose the audio device, click the gear icon and select “Properties”.
PAGE 6
Your webcam video will be superimposed over your game or desktop in the OBS preview window. Use your mouse to drag and drop the video where you want it, and click and drag the corners to resize your webcam frame to your desired size. If you don’t see your webcam video, make sure the Video Capture Device appears above your main game or display capture source in the Sources box. Sources that are on top of one another in the list are on top of one another in your live video.
PAGE 7
You can also adjust your streaming settings from this window. Select the “Output” icon here and use the options under “Streaming” to choose your bitrate and encoder. You’ll probably want to tr y streaming with the default settings first to see how they work . If it’s not smooth, tr y lowering the video bitrate here. The optimal setting depends on your computer and Internet connection. OBS recommends experimenting with different settings until you find the ideal one for your system.