Twitch chat on top of your game with a single monitorSoon
The Koster app for Windows and macOS shows chat right on top of your game. Handy when there is no second monitor and you need to read viewers without leaving the game. Clicks pass through the overlay, and chat looks the way you set up your Koster widgets.
The app is getting ready for a public release. The other Koster tools already work.
- nordwind: is the sniper the play on siege?
- Marina K.: hey, long-time viewer
- lena_k: GG, clean push
How it works
Install the app
For Windows and macOS, with the same account as on the site.
Pick widgets and a monitor
The overlay shows the chat widgets you set up in Koster on the monitor you choose.
Play
Chat stays on top of the game without getting in the way. A hotkey lets you move it, the tray icon hides it.
What it does
Clicks pass through
The overlay doesn’t grab the mouse, so the game plays as usual. Press a hotkey to move the chat.
Background and text opacity
Make chat barely visible so it doesn’t cover the game.
Your widgets
The same look and filters as your OBS chat widget, changed on the site.
Tray icon
Show or hide the overlay, pick widgets and open settings without leaving the game.
FAQ
How can I see Twitch chat with a single monitor?
Install the Koster desktop overlay: it shows chat on top of your game and lets clicks through to the game.
Which systems does the app support?
Windows and macOS.
Will viewers see the overlay?
The overlay is for you, not for viewers. To show chat on stream, add a Koster chat widget to OBS.
When will the app be available to everyone?
It is getting ready for a public release. We will announce it in the Koster dashboard when it’s ready to download.
More Koster tools
Bring your people to the fire
Koster is free during the beta. All you need is a Twitch, Discord or Telegram account.
Start for free