Most overlays make a stream look tidier. Interactive ones change how viewers behave.
Short answer
Interactive OBS overlays are browser-source web pages that read your live chat and respond on screen — running games, votes, leaderboards and counters — unlike static overlays, which are decorative and change nothing about viewer behaviour.
Static versus interactive
Static overlays — frames, borders, backgrounds — improve presentation. Alert overlays react to follows and donations. Interactive overlays react to your chat, continuously, and are the only category that changes engagement metrics.
A beautiful static overlay on a silent stream is a nicer-looking silent stream. Prioritise the layer that gives viewers something to do.
What interactive overlays can do
Anything that can be driven by a chat message and drawn on screen.
- Chat-playable games with live scoreboards
- Vote screens with counts updating in real time
- Persistent leaderboards across a stream or day
- Claim mechanics where viewers own something on screen
- Counters, goals and collective targets
How to choose one
Three questions separate overlays that get used from ones that get uninstalled.
- Can a viewer join by typing one word, without leaving chat?
- Does it reconnect on its own each stream, or must you reconfigure it?
- Is it watchable when nobody is participating?
Setup essentials
Add as a browser source, size it to the overlay's native dimensions, and leave the shutdown/refresh options unticked so it keeps its state across scenes.
Your overlay URL is usually tied to your account — treat it like a password, and blur it if you ever show OBS on stream.
Performance and stacking
Two or three overlays is comfortable on most machines. Reduce FPS on static ones and avoid duplicating sources across scenes.