Write your app as a classic Ruby script, just like you're use to.
Compile your app to native code and run on any device.
Build your app for the web using JavaScript.
Install the gem and read the guides
With Ruby 2D, you can create 2D applications, games, and visualizations with ease. Just a few lines of code is enough to get you started.
require 'ruby2d'
# Set the window size
set width: 300, height: 200
# Create a new shape
s = Square.new
# Give it some color
s.color = 'red'
# Show the window
show
Enjoy Ruby 2D? Join the community!