If you’ve ever watched your favorite LoL content creator pull off a wild pentakill live and thought you could share your own ranked climbs or ARAM chaos with an audience, you’re probably wondering where to start. Learning how to stream League of Legends on OBS is the first, most accessible step to building your own community, no fancy expensive equipment required. I’ve been streaming my own silver to gold grind for two years now, and I’ve tested every OBS setting under the sun to figure out what works for LoL specifically, without making your PC lag mid-teamfight. This guide skips the overcomplicated tech jargon and walks you through exactly what you need to do to go live in under 20 minutes.
Pre-Stream Prep Before You Learn How to Stream League of Legends on OBS
You don’t need a top-tier gaming PC to stream LoL, but there are a few basic checks you should run first to avoid frustrating issues once you go live. LoL is a fairly lightweight game, but OBS uses extra processing power to encode and send your stream to your platform of choice, so a little prep goes a long way. I made the mistake of not checking my upload speed before my first ever stream, and it dropped frames every time I got into a teamfight, leading to half my viewers leaving in the first 10 minutes. Don’t make that same mistake.
Run through this quick pre-stream checklist before you touch any OBS settings:
- Run a speed test to confirm your upload speed meets the minimum requirements for your desired stream quality (6 Mbps for 1080p 30fps, 10 Mbps for 1080p 60fps)
- Close any background apps you don’t need (browser tabs with 10+ open LoL wiki pages, editing software, unused game launchers) to free up RAM
- Update OBS to the latest version to avoid bugs or compatibility issues with recent LoL patches
- Log into your chosen streaming platform ahead of time and copy your stream key to have it ready for setup
Never share your stream key with anyone, because it gives full access to stream to your channel, even if someone else is using a different device. If you think your key has been leaked, reset it immediately in your platform’s account settings. If you have a lower-end PC with less than 8GB of RAM, you can still stream, you’ll just need to adjust your quality settings later, which we cover in detail.
Optimal OBS Settings for Lag-Free League of Legends Streams
Once you’ve finished your pre-stream checks, open OBS and head to the settings menu to get your base configuration set up. The first thing you’ll do is add your stream key: go to the Stream tab, select your platform (Twitch, YouTube, Kick, etc.) from the dropdown menu, and paste the key you copied earlier. You don’t need to adjust any other settings in this tab for now.
Next, head to the Video tab. Your base (canvas) resolution should match your monitor’s native resolution, so if you play LoL on a 1920x1080 monitor, set that as your base resolution. Your output (scaled) resolution can be the same as your base if you have a strong PC and good upload speed, but you can downscale it to 1280x720 if you’re struggling with performance. 30fps is perfectly fine for LoL streams if you don’t have a high-end PC, most viewers won’t notice the difference between 30 and 60 unless you’re streaming high-skill fast-paced plays in Challenger rank.
Head to the Output tab next to adjust your encoding settings. For video bitrate, match it to your upload speed: 4500 kbps for 1080p 30fps, 6000 kbps for 1080p 60fps. If you have an NVIDIA GPU, select the NVENC encoder, if you have AMD use AMF, and if you only have integrated graphics use x264 CPU encoding. GPU encoding takes the load off your CPU so LoL runs smoother while you stream. I use NVENC encoding on my RTX 3060, and I never get frame drops in LoL even when streaming 1080p 60fps, while my friend who uses an older i5 CPU sticks to 30fps with x264 and it works perfectly for him. Enable CBR (constant bitrate) instead of VBR, it gives a more consistent stream quality for viewers, no random buffering spikes when teamfights happen with lots of ability effects on screen.
Last, adjust your audio settings in the Audio tab. Set your desktop audio device to your default speaker or headphone output, and set your mic input to your desired microphone. You can adjust individual volume levels later in the OBS audio mixer, but aim for game audio around 70% and mic audio around 80% so your commentary doesn’t get drowned out by LoL’s announcer or in-game sound effects.
Scene and Source Setup for Professional-Looking LoL Streams
Once your settings are saved, it’s time to set up your scenes and sources so OBS captures LoL correctly. Scenes are just different layouts you can switch between during your stream, and sources are the individual elements that show up in each scene. Start by creating your main live scene: click the plus button under the Scenes box, name it “Live LoL Gameplay” and hit okay.
Now you’ll add your game capture source: click the plus button under the Sources box, select Game Capture, name it “LoL Capture” and hit okay. In the game capture settings, select “Capture specific window” then select League of Legends from the window dropdown menu. Make sure you don’t select “Capture any fullscreen application” because that will capture whatever game you have open, not just LoL. Using game capture instead of display capture cuts down on resource usage and prevents accidental privacy leaks, like if you have a private message open on your desktop when you alt tab to check chat.
You can add extra sources to your scene if you want, depending on how you want your stream to look. Popular additions include a webcam capture source if you want to add facecam, a text box with your summoner name and current rank, a chat overlay so viewers can see chat on screen, and alert boxes that pop up when someone follows, subscribes or donates. You don’t need a fancy custom overlay when you’re first starting, a simple text box with your channel name is enough to let viewers know who you are. I still use a basic text overlay after two years of streaming, and no one has ever complained.
It’s also a good idea to create a second “BRB” scene for when you’re in queue, grabbing a snack or taking a quick break. Add a fun image or text that says “In Queue, Be Right Back!” so viewers know you’re not gone for good, and they don’t leave to watch another stream while they wait for your next match to start.
Troubleshooting Common Issues When Streaming LoL on OBS
Even if you follow all the setup steps perfectly, you might run into small issues when you first start streaming. Most of these are super easy to fix once you know what to look for, and they’re problems almost every new LoL streamer runs into at some point.
The most common issue is OBS not capturing LoL at all, so you just see a black screen in your preview. To fix this, first make sure LoL is running before you add the game capture source, then right click the LoL shortcut on your desktop and run it as administrator, and do the same for OBS. If that doesn’t work, disable full screen optimization in LoL’s in-game settings, that usually fixes any compatibility issues.
If your stream is dropping frames or buffering for viewers, that’s almost always an issue with your bitrate being too high for your upload speed. Lower your bitrate by 500 kbps at a time until the frame drops stop, or downscale your output resolution to 720p to reduce the amount of data OBS has to send. If you’re getting frame drops in LoL while streaming, prioritize the game process in your task manager before going live, that ensures your PC allocates more resources to LoL so you don’t lose teamfights because of lag.
Audio sync issues are another common complaint, where your voice is either ahead of or behind the game audio. To fix this, go to the Advanced Audio Settings menu in OBS, and adjust the sync offset for your microphone. If your voice is behind the game, add a positive offset between 100-300 ms, if it’s ahead add a negative offset. Test the sync by recording a 1 minute clip of you talking and using an ability in LoL, then adjust until it lines up perfectly.
You don’t need thousands of dollars worth of equipment to start sharing your LoL matches with the world, and learning how to stream League of Legends on OBS is far simpler than most new streamers think. Start with the basic settings we covered, test your stream for 10 minutes before going live to catch any issues, and don’t stress about having a perfect setup on your first go. Most viewers stick around for your personality and gameplay, not flashy overlays or 4K quality. Once you get comfortable with the basics, you can start experimenting with custom alerts, interactive chat commands, and more to make your stream feel unique to you. Now go queue up and hit that go live button.