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Digital Icebreakers is a platform for presenters and audiences to collaborate, play, and experiment together.


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Digital Icebreakers

Digital Icebreakers

Digital Icebreakers is a platform for presenters and audiences to collaborate, play, and experiment together.

How it works

A presenter creates a Lobby and audience members join by pointing their phone cameras at the presenter's screen and scanning the QR code. The presenter can then guide the audience through games and experiences by clicking New Activity. Try it out on


  1. Clone this repo
  2. Install .NET Core 3.1 SDK
  3. Run ASPNETCORE_URLS= ASPNETCORE_ENVIRONMENT=Development dotnet run --project DigitalIcebreakers

Infrastructure overview

Infrastructure diagram

Game Architecture

A Lobby is created and owned by the Presenter. Participants may join as Clients. A Presenter controls which Game is currently running, and can close the Lobby at any time, ejecting all off the Clients. A Client's experience is guided by the Presenter.

Creating your own Game

A Game consists of two parts:

  1. C# code that controls the Game's messaging between the Presenter, Clients and System.
  2. TypeScript-based React components that control the view and actions of the Presenter and Clients.

I will create a game called Splat to illustrate what is required for a (rather trivial) end-to-end game. The Game should be entirely implemented within the DigitalIcebreakers folder and project. Splat will have one button on Client views. On press, the Presenter view will choose a random point and color, and begin expanding a filled circle centered on the point. On release, the circle will disappear.

Implement the Backend

  1. Add Splat.cs to DigitalIcebreakers/Games. I've just copied Buzzer.cs because the messaging is the same - I've just changed the class name and set the Name property.
  2. Add the Splat constructor to GameHub.GetGame .

Implement the Frontend

  1. Add a folder called DigitalIcebreakers/ClientApp/src/games/Splat, and inside it implement:
    1. SplatClient.tsx. I've just copied BuzzerClient and updated the name, because the UI for the Client is identical. This component uses pixi.js to render a button and forwards the press and release events to the SignalR hub.
    2. SplatPresenter.tsx. Again I copied BuzzerPresenter, switched it to extend PixiView, removed render() as we don't need it for PixiView and implemented the response to up/down button presses.
  2. Add a record to DigitalIcebreakers/ClientApp/src/games/Games.tsx for Splat, setting it's name and importing the Presenter and Client components.

Running & Testing

In Visual Studio Code, you can hit F5 and this will compile both the Backend and Frontend and launch a browser. Once the site loads, click Host > Create, and move the window to half of your screen. Right-click the URL at the top of the page and select Open Link in Incognito Window - this new window will connect as a Client. On the first window click New Activity > Splat. You should see the Client window update with button - clicking the button will update the Presenter.


  • Jump in and build your own games & experiences immediately!
  • Suggest new features and/or games
  • Post feedback on your experience while using Digital Icebreakers with your group/talk/presentation
  • If you want to make architectural improvements (of which many are needed), start a conversation first to improve the likelihood your PR is merged.


Ask here, or on twitter, or anywhere here.


Digital Icebreakers is a platform for presenters and audiences to collaborate, play, and experiment together.







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