Before attemping to run the game at all, make sure you have Node v5.8.0 installed.
To run first all dependencies must be installed:
$ sudo npm install
will install all dependencies.
Then you can:
$ grunt
to create meatpocalypse.min.js.
Then run the server:
$ node src/app.js
Finally you can run the game in your browser:
http://localhost:3000
Every time you make a change to a .js file in src/client/game, you must re-run grunt in the root project directory to be able to see your changes in the browser.
Before committing, make sure all tests pass by running:
$ jasmine