Free Guess The Number Chat Game Overlay for Live Streams

The first viewer to guess the number wins the round. That is the whole loop. A number between 1 and 99 sits hidden behind the overlay, chat fires off guesses in chat, and the moment someone lands on the right answer their name flashes on screen as the winner before a new round starts automatically.

It is free with Meld Studio. No watermark, no per-stream cap, no setup steps before the first round.

How a round plays

The game starts with a hidden number between 1 and 99. Viewers type guesses directly into chat, no command prefix, no special syntax, just the number. The overlay tracks every guess as it comes in and resolves the round the instant a correct answer arrives. The winner’s name takes the screen, the round closes out, and a new number is generated automatically so the segment cycles on its own.

The single-keystroke entry is the point. A first-time viewer needs zero context to participate. They land on the channel, see “1 to 99,” type a number, and either win the next round outright or watch the winner show up by name. Either way, they have already engaged in their first thirty seconds on the stream.

Guesses from Twitch, YouTube Live, Kick, and TikTok Live all feed the same round. A multi-platform audience competes against the same hidden number on the same screen instead of running parallel games in four separate rooms.

When to drop it in

The auto-cycling structure makes the overlay a natural fit for short gaps. Loading screens, queue waits, lobby times, and the awkward minute between segments all work because a single round resolves quickly and the next one starts on its own. For longer formats, the game also works as a sustained passive segment in a starting soon or warm-up scene, with rounds piling up while you finish setup.

Recurring use is where the overlay earns its keep. A nightly “guess the number” bit gives regulars a familiar opening hook, and the leaderboard of past winners builds organically across streams as the same names keep showing up.

Customizing with Meld Spark

The default 1-to-99 range works out of the box. Meld Spark, the AI overlay editor inside Meld Studio, lets you reshape the rules from plain English. A prompt like “Change the range to 1-50 and show hot/cold hints after each guess” rewrites both the number pool and the feedback loop at once. You can ask for narrower ranges, themed prizes, win streaks, or different hint mechanics, and the change persists between sessions.

Adding it to your stream

Download Meld Studio and the game drops into a scene with no configuration, with chat connections to Twitch, YouTube, Kick, and TikTok already linked from a single sign-in. If you would rather stay in OBS, the free Spark Plug for OBS plugin loads the same overlay as a browser source inside your existing OBS scene, with the same auto-cycling rounds and the same multi-platform guesses.

Use cases

• Quick filler between matches or topics

  A round resolves the moment a viewer guesses correctly, which makes the overlay ideal for short gaps. Drop it onto the screen between ranked queues or topic changes, watch chat fire off guesses, see the winner appear, and move on. The whole bit fits inside a loading screen.

• First-time-viewer hooks

  The barrier to entry is a single number between 1 and 99. A first follower landing on the channel can type one guess and either win the round outright or watch the winner show up by name. That kind of low-friction interaction is what turns a passive scroller into a chatter on their first visit.

Frequently asked questions