How to Display Transparent Roulette in OBS [2026 Guide]

Updated: January 2026

Want to run giveaways or viewer participation events on your stream but don't know how to set up a roulette wheel? This guide explains how to display a transparent roulette overlay using OBS Studio. It's free and requires no signup - you can start right now.

What is KimeToku?

KimeToku is a free lottery app for streamers. It features 5 different lottery modes including Roulette, Slot, Shuffle Cards, Lottery, and Ranking announcements. With OBS transparency support, you can overlay it directly on your stream.

🎡
5 Lottery Modes
Roulette, Slot, Cards, Lottery, Ranking
🎬
OBS Transparency
Overlay directly on stream
🎉
Confetti Effects
Spectacular winner celebrations
💰
Free to Use
No signup required

OBS Setup Instructions

1 Add Browser Source in OBS
Open OBS Studio and click the '+' button at the bottom of the Sources panel. Select 'Browser' from the menu and give it a recognizable name (e.g., "Roulette").
2 Set KimeToku URL
In the properties window, configure the following settings:
  • URL: https://kime-toku.com
  • Width: 1280
  • Height: 720
3 Enable Transparency (Important)
In the same properties window, make these changes:
  • Delete all content in the "Custom CSS" field (leave it empty)
  • Check the "Enable transparency" option
This makes the background transparent, showing only the roulette on your stream.
4 Control KimeToku and Start
To interact with KimeToku while streaming, right-click the browser source and select "Interact". This allows you to control the interface directly.
  1. Enter participant names in the left text area (one per line)
  2. Select a lottery mode (Roulette, Slot, etc.)
  3. Click the "Start" button
💡 Tip: Click "Stream Window" to open the lottery display in a separate window. You can then capture this window using OBS "Window Capture". This is useful when you want to separate the control panel from the display.

Using Green Screen Mode

If the transparency setting doesn't work or you prefer using chroma key compositing with other software, you can use green screen mode.

  1. Turn on "Green screen" in KimeToku's sidebar
  2. In OBS, add a "Chroma Key" filter
  3. Select "Green" as the key color type
⚠️ Note: Green screen mode may result in lower quality compared to the transparency setting. We recommend using the "Enable transparency" option whenever possible.

Common Issues and Solutions

Background Not Transparent

If the default CSS remains in the "Custom CSS" field, transparency won't work. Delete all content from this field. Also verify that "Enable transparency" is checked.

Roulette Not Displaying

Check that the URL is entered correctly. You need the complete URL including https:// (https://kime-toku.com).

Cannot Control the Interface

Right-click the browser source and select "Interact" to enable control. To exit interact mode, press Esc or click elsewhere.

Start Free Now

No signup required. No download needed. Works right in your browser.

Open KimeToku

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