Design systems as visual models

Turn resources, rules, decisions and feedback into a diagram people can inspect together, starting with a simple sketch and adding the detail a real question needs.

Trusted by companies worldwide

  • Legou Games
  • Zynga
  • Chess.com
  • Animoca Brands
  • Microsoft
  • Amazon

Create playable diagrams for any system, regardless of complexity. Make feedback loops and economies easier to validate, communicate and understand.

  • Universal

    Deconstruct any complexity regardless of the challenge you're solving

  • Easy to pick up

    A lean, visual language of just 9 symbols that you'll learn in half a day

  • Alive

    Test how systems progress at any step by just hitting Play

What you can do with it

  • Visualize complexity

    Diagram the components and rules of a complex system to see how it works.

  • Systems in motion

    Press Play to watch the system move and see how its rules interact.

  • Iterate instantly

    Refine rules and parameters yourself, without code or deployments.

  • Turing complete

    A Universal Modeling Language (UML) of 9 symbols & 2 connection types to define and compute any system, no matter how complex

  • Built-in randomness

    Supports weighted & percentage distributions, random triggers, flows and shuffles and advanced math.js functions

  • Custom variables

    Define variables that you and your team can use in all diagrams by referencing them in the Formula fields of Nodes and Connections

  • Drag & drop

    Design using the drag&drop interface and define the rules that govern your system using an intuitive interface

  • Layers

    Selectively reveal subsystems and information while retaining the full functionality of the Play feature.

Your future back-of-the-napkin

Turn a quick sketch into a diagram you can Play, share and keep refining from the first note to launch.

  • ISO 27001 certified
  • SSO & SAML
  • GDPR compliant
  • Trustpilot verified
  • Red Herring Top 100
  • Dealroom Rising Star