You need to install Docker.
Clone the repository
git clone https://github.com/Elao/curvytron.git
cd curvytron
Build the docker image
docker build -t yourname/curvytron .
docker run -d --name curvytron -p 8080:8080 yourname/curvytron
Go to http://localhost:8080 Join a room, choose a player name and play!