We're making StreamArena because chat on most live streams has nothing to do but watch, and the games that give it a job were built for big gaming channels. StreamArena is a set of party games for streams and podcasts. You add one link to your stream. In OBS, viewers scan a code and play on their phones, and when you stream through Upstream.so, your YouTube, Twitch and Kick chat play the same round by typing.
We also run Upstream.so, a cloud streaming platform that sends one stream to up to 10 of its 30+ supported platforms at once. That job gives us a close look at what hosts do between topics, and at what their chat does while they do it.
A lot of live streams are talk shows now
The biggest category on Twitch is Just Chatting, where a host talks to the camera and to chat. It stayed on top in the second quarter of 2026.
Just Chatting remained Twitch's top category at 670.5 million hours watched
Add video podcasts on YouTube, church services, cooking shows, classes and music streams, and a big part of live video is people talking. We think plenty of people in those chats would take part if they had a reason to type something other than hello.
A good game gives chat that reason for a few minutes. Then the host goes back to the show, and our bet is that the people who played stay a little longer.
The games we found needed a crowd or a PC
Before we wrote any code, we played what was already out there. Party games like Jackbox are great on stream, but the host runs the game on a computer or console, and viewers join on a second device with a room code. Jackbox's streamer guide says most of its games take an audience of up to ten thousand players. That suits a channel with a busy chat.
Games built for chat tend to be downloads. Marbles on Stream is free on Steam, and viewers join a race by typing !play in Twitch chat. Tools like this run on the streaming PC and often read one platform's chat. Most of them look like they were made for gamers.
A podcast with two guests needs something else, and so do a church stream and a channel with eight regulars. So we wrote down what a stream game would need for those shows and started there.
What StreamArena does
A StreamArena game is a web page that runs in the cloud. You pick a game, copy its link and add it to your scene as a browser source in OBS, Streamlabs or Meld. On Upstream.so the game is already a scene, with your chats connected. The steps are on the how it works part of our homepage.
Once the game is on screen, people can join in a few ways:
- In OBS, Streamlabs or Meld, viewers scan the code on screen or open a short link and play in their phone's browser. Embedding a game is free.
- When you stream through Upstream.so, its Multi-chat brings your YouTube, Twitch and Kick chat into the game, so viewers play by typing. If you multistream, all three land on one scoreboard.
- Your guests scan a code on screen, pick a name and answer in their phone's browser, without signing up for anything. Their answers stay hidden until you hit reveal. There's more on that in guests.
The first games are in the lineup: Movie Barcode, Zoom Out, Higher or Lower, Chat vs Host, Tug of War and Platform Wars.
Five rules a game has to pass
A game only goes into the lineup if it passes five rules. We wrote them while watching small streams and podcasts, because those are the shows we're making this for.
| Rule | What it means on stream |
|---|---|
| Fun with 1 to 5 players | Host vs chat and guest rounds work with two people. A house player joins quiet rounds, so a lone viewer has someone to beat. |
| Readable in a second | Big type and one question at a time, so the game still reads on a phone screen. |
| Learnable in one round | The first round teaches the game. There's no rules screen to read out. |
| Short rounds | A round takes about a minute and ends on a reveal that's fun to watch, even for people who didn't guess. |
| Works over a camera | The game leaves room for your face cam, so you stay in the shot while chat plays. |
Silly games on a serious platform
Some of our games are a bit dumb on purpose. Guessing a film from a strip of colors is silly, and we like it that way. The platform under the games has to load fast, stay up for a whole show and look like something a host is proud to put on screen.
Over time we want StreamArena to be a gallery of many games. Some will be ours, and some will be community games that other people build with our tools and that we play and approve first. A StreamArena game is one web page. Our SDK brings in chat from Upstream.so and answers from phones, keeps the scores and draws the overlay. Makers keep 100% of what their game earns for the first two years, and the creator program has the details.
Why it comes from the Upstream.so team
Upstream.so already brings a host's YouTube, Twitch and Kick chat into one feed with its Multi-chat, so StreamArena reads chat from there instead of building its own readers. That makes chat play one more reason to stream with Upstream.so, on its free plan too. Inside Upstream.so a StreamArena game is a scene in your studio, and it can keep a game channel live 24/7 while your computer is off.
StreamArena still works outside Upstream.so. Any streaming app that can show a web page can run it, including OBS, Streamlabs and Meld, and there viewers play from their phones.
Starting a game is free. If your chat has been quiet lately, pick one for your next stream and see who answers first.
Questions
Is StreamArena free?
Yes. Starting a game is free.
Do viewers need to install anything?
No. In OBS, viewers scan the code on screen and play in their phone's browser. When you stream through Upstream.so, they can also play by typing in YouTube, Twitch or Kick chat. Guests use their phone either way.
Who makes StreamArena?
The team behind Upstream.so. Both are brands of Zukunft d.o.o., and StreamArena games work best inside Upstream.so, where the game is already a scene.
Sources
- Streamlabs and Stream Hatchet, Q2 2026 live streaming report
- Jackbox Games, The Jackbox Party Pack 5 streamer's guide
- Marbles on Stream on Steam
- Upstream.so pricing and platform limits
Checked on October 10, 2026. Platform features change, so open the page before you rely on a detail.
