Agarivo is a clone of the game "Agario" using Node.js and Pixi.js
In order to host my Agario clone yourself, you have to install Node.js first.
Ubuntu
$ sudo apt-get update
$ sudo apt-get install nodejs
MacOS
$ brew install node
Windows
Download the Windows installer from the Node.js website and follow the instructions given by the installer.
Then, run
$ cd path/to/folder
$ node server
Use mouse cursor or touch to control the movement of the cell
This is knee-deep in development and is designed to purposefully run slow as I am testing it on the same machine that I'm running the server on. This will be changed in the future.